DaKine builds backpacks, travel bags, accessories, outerwear and clothing for people who love to surf, snowboard, skateboard, mountain bike, ski, windsurf, kiteboard and travel. This socks feature: Nylon and spandex blended lining yarn for comfort, abrasion resistance and strength, durable, Acrylic-Pillex face yarn resists pilling, nylon reinforced heel and toe for durability, instep, ankle and upper cuff compression zones, medium cushioning in foot bed and shin and two year limited warranty. Material: Acrylic, Nylon.