The Booker Sock integrates some of the most practical elements of a more technical sock, and the everyday comfort that we&';re all really looking for in the perfect sock. Made of a durable polyester yarn, Booker wicks moisture away, protecting you from that very disagreeable swampfoot that comes with sweaty feet, rain-soaked bike rides, and sloppy hikes. And arch compression gives you a snug fit that stays in place and supports you on your adventure with every step or pedal. Dakine Booker Sock Features: Crew height printed do-anything sock Polyester yarn wicks moisture Arch compression