It's great for t-shirts and bedsheets, too. The amazing thing about it, and I don't understand how it works, but it absolutely does, is that not only is it coo

It's great for t-shirts and bedsheets, too. The amazing thing about it, and I don't understand how it works, but it absolutely does, is that not only is it cooling when you're hot, but it's warming when it's cold outside. Something to do with fabric expanding/contracting due to the temperature difference, and thus favoring air flow in one direction or the other maybe?