Going for a canyon ride in cotton socks would be like stretching a Capo Thermocool Resistex Carbon Sock over your head while you weave through traffic—a poor choice. Slip these microfiber socks over your sweaty dogs, and feel the cool, dry difference of hollow-core fibers wicking away your sweat. Thanks to the antimicrobial treatment, you can even toss these socks into your girlfriend's backseat. She probably won't notice for a week.