In rock climbing you'll find that protective gear follows a similar system.[1] Though of course different manufacturers choose different color schemes mostly. B

In rock climbing you'll find that protective gear follows a similar system.[1] Though of course different manufacturers choose different color schemes mostly. Being able to quickly grab the right size piece that fits the crack you're placing into is exceedingly important. [1] https://www.summitpost.org/size-matters-a-gear-comparison/694359 https://www.summitpost.org/size-matters-a-gear-comparison/69...