The Injinji five-toe original - this is the sock that started it all. The patented design protects your toes from the skin-on-skin friction that causes blisters, and allows your toes to splay and work independently for better feel and confidence on tricky terrain. The mini-crew height keeps dirt and debris out, arch support is built in, and the form-fitting five-toe design works with all your shoes - including your apres activity flip-flops. Features Arch support Blister prevention Moisture management Total foot utilization Fiber content: 85% Coolmax/12% Nylon/3% Lycra