Injinji Trail Midweight Crew Peak Engineered and cushioned for use on the toughest of terrain. Trail Midweight Mini-Crew delivers comfort, protection and support. The Crew sits mid calf calf and its snug fit seals out grit and debris. COOLMAX EcoMade fibers wick away moisture, nylon adds durability, and Lycra holds the fit. Arch support is built in for a secure fit and mesh at the top adds breathability. Injinji's design wraps fabric around each toe to minimize blisters, more effectively wick moisture, and give you the freedom to utilize your whole foot on tough trails during training runs and ultra marathons. Support Supportive band that offers a secure and stable fit. Blister Prevention Individual toe pockets to illiminate skin on skin friction Moisture Management Each toe is uniquely wrapped in moisture wicking fabric allow for transport of sweat and temperature regulation Total Foot Utilization Alowing your foot to function as nature intended. Coupled with FiveFingers, these are an awesome duo. Mesh Top Provides maximum breathability and ventilation on the top of foot. Fiber Content Fiber content: 39% CoolMax EcoMade 58% Nylon 3% Lycra Protective Cushion Extra cushioning on the footbed to increase foot comfort. Secure Rib A secure but comfortable rib design seals out the grit and debris.