Sockwise Constriction Free Crew Socks are designed to provide maximum comfort for those needing non-binding and non-elasticised socks. Sockwise Constriction Free Crew Socks are made with Silver DryStat fiber, which inhibits the growth of bacteria and moulds. These socks stay dry and odor-free in the most extreme conditions. Silver DryStat moisture control reduces the risk of infections, while the lean-toe closure reduces blistering. Due to the stretchability of the sock, if your shoe size is between sizes, choose the smaller.