- 37% Merino Wool, 37% Polyester, 10% Nylon, 13% Elastic, 3% Lycra Spandex- Imported- Machine Wash- Material and service: 58% merino wool content yarn for the foot area to keep feet warm, comfortable, breathable, dry and anti-odor- Compression: Target compression of the arch, ankle, and calf to prevent swelling and cuff non-slip, blister-free- Fit design: Left and right foot design, perfect fit, no extra material, no bunching, no slipping- Warm and comfy: Midweight; Padded front shin, ankle, and sole for shock absorption, cozy, thermal- Occasion: Skiing, snowboarding, snowmobiling, hunting, hiking, camping, ice fishing. Matching snow boots, overalls, etc.