 So if you look at socks, which you can even find at discount stores that say wicking socks, dry fit, dry weave, dry tech, things like that. Those are some keywords. Those socks will be more likely to protect your feet in that sense. And besides cotton, what other like fabrics? So usually they're acrylic blends. There might be a little bit of cotton in there as well. Wool is a great fiber for this as well. So Smartwool is a brand of socks that...