Waterproof: The sock is 100% waterproof and seamless.
Breathable: Highly breathable, keep your feet dry and warm.
Materials: Outer:80%Nylon/20%Lycra. Inner: 20%Merino wool/20% Acrylic/39%Polyester/20%Nylon/1%Elastane.
Size: Small (US 4-6); Medium (US 6.5-9); Large (US 9.5-12)?X-Large(US 12.5-14.5).
Versatile: ideal for any outdoor activities, such as Hiking, Trekking, Cycling, Mountain climbing, Hunting and Exploring...