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Mylo: A leather-like material made from mycelium
- JonRB 9y agoIt's awesome to see some more players in this space. I've been keenly watching out for Modern Meadow's updates as well. Looking forward to seeing what this will bring!
- igitur 9y agoInsert obligatory Star Trek Discovery reference here.
- DoTheNeedful 9y agoOr Dune
- baxtr 9y agoLeather production comes at a very high cost to the environment. So I welcome any real alternative (assuming it is significantly less dirty). https://undark.org/article/leather-tanning-bangladesh-india/ https://undark.org/article/leather-tanning-bangladesh-india/
- mieses 9y agothe alternatives will probably be more dirty when you factor in energy, waste, non-biodegradable plastics, etc.
- hexane360 9y ago"dirty" isn't really well-orderable. It depends on what you're worried about. Chromium toxicity is definitely a huge problem with current leather production, as well as atmospheric effects and water use from raising cattle.
- notaspider 9y agolol citation needed
- jiveturkey 9y agoReported feb 2017, with shutdown of the district ("no exceptions") slated for mar 31, 2017. So what happened, did it shut down and move to the new park that has waste treatment, etc?
- pvaldes 9y agoStill needs to be tanned and dyed. With the same products. As a lot of the problem with the leather is that tanning products and inks are poisonous, IMHO probably is not a solution for this problem. Mycelium is more porous than leather (probably), so it could absorb more product. But I could be wrong. Just speculating. Better than plastic for sure if enough strong and can be certified non-allergenig or a cause of asthma.
- mygo 9y agoA lot of the problem with the leather is that you have to kill cows, lambs, etc. for fashion. But on the plus side a leather jacket can last a lifetime. And they cost mid-hundreds to low-thousands for a decent one so people aren’t buying as many of them as they would a $15 plastic / polyester throwaway jacket from wal mart.
- sjwright 9y agoPresumably we're killing the cows and lambs for fashion AND food? Even if we stopped using animal leather materials tomorrow, I doubt it would put much of a dent in the industry. (For the record I'm all for eating meat, but I agree that beef is unsustainably bad for the environment compared to other animal options like poultry and eggs.)
- atmoz 9y agoPutting personal preference (taste, price, etc.) aside, I'm curious what other reasoning is behind your position of being "all for eating meat" (if any)? I'm assuming here that by mentioning it in the same sentence as you say beef is bad for the environment, you are talking about being for meat production on a global scale, and not just for your personal preference.
- setman85 8y agoyes I too would like to know the reason for being "all for eating meat". I think most reasonable people wouldn't eat meat (provided reasonable food alternatives) if they got to know the animals and how much they suffer. (just like most Americans would refuse to eat dogs or cats)
- gehwartzen 9y agoWon't that leather still get used elsewhere? I don't think many animals are reared with the primarry intent of producing leather but rather becouse of our high meat demand and we can't make one without the other.
- CamperBob2 9y agoIt will be interesting to see what happens over the next decade or two, once synthmeat is good enough to take over the market. Various breeds of cattle will likely go extinct, and the same social opprobrium that will wipe out the market for "real" meat will presumably affect leather goods as well.
- Xunxi 9y agoThat is quite amusing. Nonetheless, Muslims and Jews will NEVER eat "frankenmeat" thats more than 1.8 billion people to begin with. I also very much doubt synthetic meat will take over the market unless unless there's some natural cause that cuts off every human access to meat. Westerners are moving away from the steroid bred in favor of organic breeds. Locals in developing nations mostly source meat locally even though the affluent ones still buy the shopping mall meat. Synthetic meat will be relegated to junk food status unless they hide the source and process from consumers, that's even if it makes it out of the lab into wide-scale manufacturing.
- malydok 9y agoWhen synthetic meat becomes good enough there'll still be loads of people who'll say it's inferior to the real thing. Apart from that I believe a happy cow is better than no cow so sustainable and environmentally-friendly livestock farms still have a reason to exist.
- virgilp 9y agoWell, already you have "loads of people" claiming that kobe beef is better than regular beef (or that the black iberian pig is better than other kinds of pig). Yet, since meet from those animals is expensive, in practice the vast majority of meat doesn't come from these species. It can be identical with synthetic vs natural meat. Price can make the difference, and we can still reduce massively the amount of livestock we breed (e.g. make the farms more environmentally-friendly through regulation)
- vanderZwan 9y agoA couple of years ago I came across Tjeerd Veenhoven's palm leather[0][1]. It is probably not quite as super-durable as pure leather, but still quite incredible given how simple it is to produce (basically, soak a palm leaf husk in a water/glycerine solution for a few days), and given that it is mainly made from what used to be waste materials. Sadly it seems the products based on it did take off enough for it to become a thing (especially since he seemed to be doing his best to also ensure the local economy of the places where this material would be produced would benefit from it). The project got turned into a foundation that tries to support a local economy and design community, so who knows, it might make a comeback in a few years[2]. More recently Veenhoven has been developing pigments from discarded tulip flower heads[3], and fabrics based on algae[4]. [0] http://www.tjeerdveenhoven.com/portfolio_page/palm-leather/ http://www.tjeerdveenhoven.com/portfolio_page/palm-leather/ [1] https://www.youtube.com/watch?v=Xo7Zfw8eLso https://www.youtube.com/watch?v=Xo7Zfw8eLso [2] http://www.tjeerdveenhoven.com/portfolio_page/wishful-doing-foundation/ http://www.tjeerdveenhoven.com/portfolio_page/wishful-doing-... [3] http://www.tjeerdveenhoven.com/portfolio_page/tulip-pigments/ http://www.tjeerdveenhoven.com/portfolio_page/tulip-pigments... [4] http://www.tjeerdveenhoven.com/portfolio_page/algaefabrics/ http://www.tjeerdveenhoven.com/portfolio_page/algaefabrics/
- optimuspaul 9y agoI came across fish leather at a market recently. It is very durable and interesting in appearance. I don't know that it is cheaper or less dirty, but it could be. http://thefishleather.co http://thefishleather.co
- pvaldes 9y agoIs dirty in its own way, but more sustainable for sure. http://www.instructables.com/id/Urine-Tanned-Salmon-Leather/ http://www.instructables.com/id/Urine-Tanned-Salmon-Leather/
- nn3 9y agoHow do they kill the fungus? I hope it won't continue growing if you wear it.
- pohl 9y agoIf the cow doesn't, why would the fungus?
- nn3 9y agoA fungus is a much more distributed organism than a cow? It's not that it has a throat to cut or a brain to kill.
- PeterisP 9y agoRandom tiny fragments of cows don't cause cows growing around my house or on my stuff. Fungus/mold does that.
- paulific 9y agoThat sounds like a great science fiction story though!
- tathougies 9y agoA lot of people have issues buying clothes that they outgrow a few years down the line. This is clearly the solution to expanding waistlines.
- splitrocket 9y agoThis is the future I want.
- deleted 9y ago[deleted]
- zarify 9y agoI wish one of their FAQ down the bottom was about water resistance.
- mod 9y agoThere's probably a good reason they didn't mention that, or durability. I do some leatherwork for fun and there's a lot of things that make it hard to replace. We'll see how it holds up when stitched. I'm very open to trying it out, though. And maybe an upholstery waterproofer would do the job.
- jfarlow 9y agoThe fun part here is that, technically, once they get a 'good enough' product and workflow up and running, adding/changing/incorporating biological properties is (mostly) just a DNA-based bit-flip away. We at Serotiny are already collecting protein domains from organisms with various capabilities - including water solubility, hydrophobicity, enzymatic capabilities, covalent attachment sites (for dyes), light-activated properties/crosslinking/dissociation/etc. And all of those protein domains we're collecting should be 100% compatible (+/- a fair bit of a tooling-exercise) with both Bolt's leather and their silk. So it should get fun once they have a solid and stable 'platform' up and running. They will be able to incorporate most any property from nature with an existing proof of principal, not just any property form mammalian hides. Congratulations guys!
- deleted 9y ago[deleted]
- zer00eyz 9y agoAs someone who does a fair bit of sewing I have to wonder if this is going to behave more like a "fabric" with leather like qualities. From the description (and it isn't much) I'm guessing that this is going to drape much like felt. Is that close to leather? Well it is closer than most woven fabrics but leather and felt behave much differently. I would also expect that this is going to cost far more than actual leather does.
- 9y ago
- toufka 9y agoVery fun. A number of new players here. I look forward to the more exotic possibilities downstream. Integrating other biological capabilities, relaxing size, thickness, supplychain constraints, being part of a genetically-dynamic R&D process. I'm curious about the different approaches between Bolt (who've so far at least been focused on fermentation) and Modern Meadow - versus newer smaller players like Provenance. http://www.modernmeadow.com http://www.modernmeadow.com http://provenance.bio http://provenance.bio
- stestagg 9y agoI didn’t know there was so mushroom for innovation in Leather production
- pixelHD 9y agoUgh, take your upvote.
- JoeAltmaier 9y agostestagg, that's hilarious. You are a very fungi.
- vedant 9y agoThis spore guy deserves more credit. Everyone appreciates a good pun from a fungi.
- dandare 9y agoPlease don't turn HN into Reddit.
- serf 9y agoreddit has a monopoly on puns now? Stupid me, I forgot that reddit invented superfluous internet discourse. (don't bother explaining what you meant by it; I get it. I just think that it's a silly way to convey that message.)
- nemof 9y agoi bet you're not a fungi at parties (i'll get my coat)
- etrautmann 9y agoThis is incredibly exciting from an environmental standpoint alone, let alone the implications for future materials research. I'm curious about the processing steps required to create the end product and the resulting durability.
- carbocation 9y agoIn their FAQ, I think they should address the question, "Is it possible that mold will grow from Mylo?" I'm sure the answer is no, but they should state it explicitly.
- ygra 9y agoConsidering it's still tanned the same way, that process will probably preserve it and prevent mold growth, just as with leather.
- ggm 9y agoCan somebody explain how this is different to the "pleather" being made as a side-product from the production of Kombucha? Thats been a thing for a while now. AFAIK its also grown by mould, from culture. But, it forms as a mat on top of the Kombucha fermenting liquid.
- scottie_m 9y agoIt’s a funky creature called a SCOBY, which is pretty much what it says on the tin, “Symbiotic Culture of Bacteria and Yeast.”
- Freak_NL 9y agoA bit of a missed opportunity there. I would have looked for a change to slip an extra 'O' in there ('organic' perhaps?) to get SCOOBY.
- bpicolo 9y agoThe kombucha byproduct looks like a vastly different material. The only real difference is that they're both kinda-sorta lather facsimiles? https://www.youtube.com/watch?v=Ds8ZFzOwGeI https://www.youtube.com/watch?v=Ds8ZFzOwGeI
- btilly 9y agoHere is what they say about pleather in their Sustainability section: Mylo is also a more sustainable option than synthetic leathers, most of which are made from polyurethane or PVC, These so-called ‘pleathers’ are manufactured using numerous toxic chemicals. While not proven to be dangerous to humans during use, these toxic chemistries persist in the landfills and groundwater where they end up. Reading elsewhere, it doesn't look like Kombucha is a pleather. If not, then they are different processes for creating different materials that are substitutes for leather.
- mygo 9y agomaybe they wrote pleather meaning faux leather instead of plastic leather
- otakucode 9y agoWould this be a good candidate to use as a synthetic skin for touch-able robots and devices? I've thought for awhile that leather might be good for that, but something like this which could be grown with electronics, heating elements, and other things embedded directly into it would probably be much better!
- hughes 9y agoIt's very inelastic. Good skin will probably need to stretch reasonably well.
- skocznymroczny 9y agodon't forget about lubrication
- Kluny 9y ago"It’s strong, and abrasion resistant." As a motorcyclist, I need to see a side-by-side abrasion resistance comparison. So far, nothing beats leather.
- gcb0 9y agotechnically toilet paper is "strong, abrasion resistant". But since they did not mention durability anywhere on the marketing speak, that means even their marketeer couldn't find a way to lie about durability qualities. Unfortunately nothing to see here :(
- jcims 9y agoYeah they didn’t really address that anywhere. I’m thinking it will be ok for fashion but not ppe.
- NovaS1X 9y agoI was going to make a similar post. I'd love a green alternative but so far I haven't found anything that performs or looks as good as genuine leather motorcycle jacket.
- collyw 9y agoKevlar? https://www.youtube.com/watch?v=GDPcFGV9vPg https://www.youtube.com/watch?v=GDPcFGV9vPg
- hfdgiutdryg 9y ago
- scythe 9y agoThe problem with pleather, in my experience, isn't that it feels insufficiently leather-like. The appearance is also just fine; the tendency to fade actually produces a somewhat nice pattern. The real problem is that the durability of most fake leather is drastically inferior to natural leather. From personal experience, I had a leather jacket which I got in my first year of college (2008) and wore until it was stolen from my car in early 2016, when it was still in nearly-perfect condition (although the zipper got worse). I replaced it with a pleather jacket which has already lost most of the material on the right elbow and may soon develop a hole. So I hope this mushroom-derived material will be at least somewhat more durable. What I really want to see is a sort of fake leather made from a more resilient polymer, such as polyetherimide or one of the other "high-performance polymers". Until that situation improves, I think I'm going back to cowhide.
- marssaxman 9y agoI still wear the leather motorcycle jacket I bought when I moved to Seattle in 1999. (I didn't even own a motorcycle then; I just bought it because it looked cool!) I've had to replace snaps and zipper pulls, but even after years of abuse, including half a dozen unintended close encounters with asphalt, the leather is still holding up fine.
- NovaS1X 9y agoThe durability isn't just a nice feature, but for motorcyclists is essential. I haven't found anything that comes close to the abrasion resistance that natural leather has (while looking like a leather jacket, not including things like kevlar for example). Top it off with durability that can seriously last a lifetime and look better with age, there's no real competition in the synthetic leathers that comes close to the real thing.
- foobarian 9y agoI'm not a motorcyclist, and I noticed multiple comments mentioning durability of leather is important for motorcyclists. How come? Is falling off a common thing with motorcycles? It sure isn't very common with bicycles or cars.
- BadassFractal 9y agoI found the conversation between Paul Stamets and Joe Rogan to be super interesting: https://www.youtube.com/watch?v=mPqWstVnRjQ https://www.youtube.com/watch?v=mPqWstVnRjQ . Never really thought much about mushrooms until that episode. This proof of concept seems like a great taste of how much untapped potential fungi have for changing everyday life if we invest more into its research.
- italophil 9y agoI believe they licensed the mycelium technology from a NY based startup called Ecovative, that has been shopping it around for furniture for some time.
- BLanen 9y agoCorrect. Proof: website: https://www.ecovativedesign.com/ https://www.ecovativedesign.com/
- nkurz 9y agoCoincidentally, a friend recently showed me his "mushroom hat", which is made from "amadou": https://en.wikipedia.org/wiki/Amadou https://en.wikipedia.org/wiki/Amadou. It's a wonderful lightweight texture, somewhere between leather and felt. A description of the manufacturing process (and the mushroom which it comes from) is here: http://frimminjimbits.blogspot.com/2012/08/mushroom-cap.html http://frimminjimbits.blogspot.com/2012/08/mushroom-cap.html
- codezero 9y agothat hat is amazing!
- hinkley 9y agoObligatory picture of Paul wearing his mushroom hat? Check. The picture of “Paul” is Paul Stamets, The Godfather of Fungus.
- sdrothrock 9y ago> The picture of “Paul” is Paul Stamets, The Godfather of Fungus. Huh -- I guess that's the source of the name of the engineer on Star Trek: Discovery (also Paul Stamets). He works with the "mycelial network."
- armadsen 9y agoYep. I believe I read that the real Paul Stamets is an advisor for the show, too.
- vanderZwan 9y agoWell, I think "advisor" is probably more like it, because it does the science of mycology quite the disservice. Beyond playing fast and loose with the science for the sake of the story, there are basic mistakes that I doubt that the real Paul Stamets would have let slip through. I wouldn't be surprised if the HN crowd is a bit hostile to FeministFrequency, but if you can skip over that you may enjoy this guest-podcast (meaning none of the FF regulars have anything to do with this particular podcast episode) by Emily Taylor, a mycologist-turned-game designer, where she explains all of the mycology-related issues of the show: https://www.youtube.com/watch?v=zqwe016dDpA&t=1m48s https://www.youtube.com/watch?v=zqwe016dDpA&t=1m48s
- Lazare 9y agoSuper interesting! However... ...my impression (not dispelled or even challenged by their marketing materials) is that we currently have effectively surplus hides as a side effect of raising animals for meat, milk, and other purposes. So when they say: > Livestock use an astonishing 30% of the earth’s entire land surface and cattle-rearing generates more global warming greenhouse gases, as measured in carbon dioxide equivalent, than all transportation methods. Put simply, as disposable incomes rise around the globe, we simply can’t meet the demand for meat — and leather consumer goods — using resources available on the planet. That seems to be about 90% true (but irrelevant) and 10% questionable. Livestock are very expensive environmentally, and as the world gets richer we will certainly struggle to support the current meat-heavy western diet for billions more people. But that still means we're going to be producing an enormous torrent of hides (more now than today). Are we really going to struggle to find enough hides to meet global demand for leather good? Prices for raw inputs have been remarkably flat for the past ~20 years (https://fred.stlouisfed.org/series/WPU04190108 https://fred.stlouisfed.org/series/WPU04190108). Even from the perspective of minimising animal cruelty, leather from animals that would already be raised and killed for meat or because they were ending their useful life on a dairy farm isn't especially problematic. Further: > We carefully control the mycelium’s growth conditions to produce a substrate that can be cured and tanned into a soft, supple material that looks and feels like leather. So it still needs to be cured and tanned. Which no doubt helps it be a great leather substitute, but much of the cost (monetary and environmental) of leather isn't the hides, it's the curing and tanning process, which can use some pretty harsh chemicals. Another reason to be skeptical that this is a huge improvement environmentally. I also note there's no real discussion of price. If this process can turn out finished leather more cheaply than traditional methods, that's a big sign this is more efficient environmentally. If it can't (and the silence is interesting), it raises the question of whether this is actually worse for the environment. (Which wouldn't be that hard to imagine!) In short: Totally cool! But so far it doesn't look like a "we're going to get rich while saving the planet" kind of thing, more like a "maybe some vegans will pay a premium for a really good fake leather jacket" kind of thing. Also good! But not as amazing as they try to make it sound.
- apendleton 9y agoMaybe it makes more sense to view this in concert with other similar efforts to address different uses of livestock? Like, to replace all the uses of a cow with synthetics, you need lab-grown meat and lab-grown milk and lab-grown leather, and ... And there are startups addressing each of these, independently of one another.
- 2_listerine_pls 9y agoIs it patented?
- weatherlight 9y agoThis is exciting for new leather products, I'd like to see how a pair of boxing gloves or a pair of Thai pads made from such a material hold up. As for other leather goods. I usually just buy them second hand from a goodwill or something. Almost, Second-hand anything is good for the environment.
- ainiriand 9y agoSecond hand leather is better for the environment that this product, that is a fact.
- deleted 9y ago[deleted]
- weatherlight 9y agothat's what I was trying to communicate! :)
- calibas 9y agoCool product, it just bothers me that they describe mycelium as the "underground root structure of mushrooms". That's like saying the rest of a plant is just part of a flower.
- anfilt 9y agoFunny thing I am not sure what fungus it is. However, I have pulled small sheets of material that is almost like leather out from beneath the bark on firewood when splitting it. It's very white kinda soft too. I wonder if this is the same thing, and then they just dye it. -Edit- It usually looks like this, but sometimes grows into like a sheet between the bark, and wood. https://projects.ncsu.edu/cals/course/pp728/Armillaria/fans.gif https://projects.ncsu.edu/cals/course/pp728/Armillaria/fans....
- indescions_2018 9y agoCongrats! This looks like a home run. Would love to see micrographs of the finished materials. Fungi possess wonderfully dense cobweb-like fibres. A terrific example of highly connected random graphs in nature! https://www.researchgate.net/figure/Scanning-Electron-Micrograph-of-mycelium-viewed-at-approximately-100x-Credit-Paul_fig1_271214237 https://www.researchgate.net/figure/Scanning-Electron-Microg...
- ChuckMcM 9y agoVery cool, but really wonder what the durability is. Is it more like faux leather which might be used as an accent or is it something you could actually use structurally.
- lucisferre 9y agoToday: Leather; Tomorrow: Space travel!
- ommunist 9y agoInteresting. But I cannot see any table with reference to mechanical properties of the new materials. MycoWorks instead shed some light upon it on their website. They are using strains of Ganoderma lucidim, and it can be tanned while it grows, not after.
- seltzered_ 9y agoI went down a rabbit hole, and stumbled upon http://www.mycoworks.com/ http://www.mycoworks.com/ as well which is seemingly an earlier competitor. Particularly their resources & reading section at the bottom references a number of papers on the subject.
- ajkjk 9y agoIs it absolutely necessary to always write (tm) after every Mylo? It's so distracting. And, well, corporate. It's gross. How do we get to a world where we can stop doing that? Or do we already live in one and not everybody knows?
- pbhjpbhj 9y agoThey're asserting their trademark, using TM is legally impotent in the UK. Trademarks are trademarks, their legal status changes with registration when you get to use RTM. Don't know if it works in other countries I assume it's different in USA, maybe affects damages?
- rdlecler1 9y agoInteresting, although on the business side, what happened to the spider silk? Bolt closed a $125m round in November 2017. You only get that kind of money if you are a messianic founder or have lots of progress.... This feels like this is some kind of auxiliary parachute. I wonder if the investors knew. Ironic that Peter Theil’s Founders Fund was one of the investors.... “We wanted spider silk and instead we got mushroom leather.”
- ampersandy 9y agoThey have a separate section on their website describing their Microsilk, which is being used to produce ties. https://boltthreads.com/technology/microsilk/ https://boltthreads.com/technology/microsilk/ https://ties.boltthreads.com/ https://ties.boltthreads.com/
- rdlecler1 9y agoThis is just speculation, but this looks to be in a “coming soon” state. They could be having any number of issues, including scaling, cost reduction, and the macro properties of the fabric may not have lived up to the early promises.
- ValleyOfTheMtns 9y agoWith lab grown meat on the horizon as a main stream consumer product, it's only natural to wonder whether we could also grow lab grown skin to create synthetic leather. Perhaps that defeats the purpose of mushroom based "leather" though? You might be able to grow the skin artificially, but it will still need to be tanned at an environmental cost.
- KozmoNau7 9y agoThat all depends on which process will be cheaper and which material will have the most desirable properties. I certainly hope the competition fosters better products in the end.
- verytrivial 9y agoThis seems to be another application of the organism used for the meat-substitute sold under the brand https://en.m.wikipedia.org/wiki/Quorn https://en.m.wikipedia.org/wiki/Quorn. (Which is rather tasty when prepared right).
- lmilcin 9y agoOne of those things that feels completely obvious in retrospect yet I envy person that has the mind to think you can grow mushrooms and make leather out of it.
- classics2 9y agoTensile strength, tear resistance?
- devilsattitude 9y agoI've gone through the entire article and have taken a moment to check the links and it's amazing very organic and very astonishing nature has the hidden gems for us discover.
- inteleng 9y agoWhat?
- nautilus12 9y agoSimple question that they didn't answer anywhere: how long until your mylo jacket degrades into mushroom goo?
- ARCarr 9y ago"We will undertake a full lifecycle analysis of Mylo™ prior to large scale commercial rollout, and we look forward to sharing those findings with the world." I'm assuming this also means finding out how long 'til it disintegrates.
- amelius 9y agoPerhaps a silly question, but what does it smell like?
- throwaway413 9y agoExactly what I wondered as well.
- skykooler 9y agoI'm curious as to how this handles high temperatures. Almost all welding gloves, aprons etc. that I have seen are made of leather due to this property.
- barkingcat 9y agoAllows you to travel at warp factor 13!
- jeffreyrogers 9y agoTwo most important things that were left out are durability and price.
- flamtap 9y agoThat was my immediate question, as leather is one of the most hard-wearing upholstery materials available. As far as price goes, at first blush I would imagine this would scale fairly well, at least much better than livestock.
- ineedasername 9y agoKeep in mind, this only obviates one of the "sustainable" aspects of leather production, the raw untanned hides. From an environmental perspective its chrome tanning and dyeing that are the big hitters, and that would still be necessary here. They could veg tan it instead, but that only slightly lessens the environmental impact at significantly higher cost.
- Annatar 9y agoI wish they were taking on investments; I want to sink some cash into them.
- dzhiurgis 9y agoOne thing I do not get about leather is why do people like it? One sibling comment mention durability. But otherwise I find it's very heavy, cold, not breathable, sensitive to water and doesn't really look that well. Sure I do prefer suede office shoes over normal leather, but that's about it. There are probably some good industrial use cases, but I much prefer Gore-tex type of materials and especially Merino wool. It's breathable, doesn't attract smell, somewhat water resistant, doesn't hurt animals too much and is close to cotton. I am rarely into clothing brands, but Icebreaker and Allbirds are making really good stuff that I've been wearing non-stop for years now.
- qkls 8y agoLooks is an opinion but at least it ages better than most materials. Old leather belts or watchstraps look fine after many years of use.