- Merino wool Acrylic Nylon Persian Polyester Spandex【MERINO Wool Socks Keep Feet Warm】Made by Merino wool and silver ions design combination to create the most warm temperature controlled and comfortable ski socks. And it keep comfort, dry and breathable. The wool ski sock can sport for a long time, but still maintain the best heated of your feet all the day. You could say goodbye to cold toes in cold weather. Exactly designed for skiing, snowboarding, cycling, long hiking, camping, ice fishing or participating in other winter sports.【All Day Comfort】Non-slip 4cm elastic cuff design to prevent slip off and not tight for wearing. Wool snow socks added reinforced toe and heel, which provides additional cushion for comfort and appropriate thickness to allow the ski socks to fit comfortably in ski boots or snowboard boots, effectively relieving feet friction and fatigue. Our ski socks are breathable and thermal to prevent blisters and sores on your toes during skiing.【Ergonomic Design & 360° Wrap Protection】For the protection of the sole muscles, we are in the foot bow adds elastic fibers, strengthens muscles pack. Added the same design in the tibia and calf muscles also for muscle meat wrap. But Can effectively avoid muscle displacement or excessive Injury from stretching in high-intensity skiing.