Lightweight hiking sock that s perfect for the day hiker or outdoor enthusiast. Great multi function style with over foot breathability and soft cushioning underfoot. Best fit in full height low volume footwear. Best performance for waterproof breathable footwear. Dry and comfortable on and off the trail. 40% new wool, 35% nylon, 24% Endurofil , 1% Lycra . Wash inside out.