Warm Ski Socks – Made of Acrylic 55%, Nylon13%, Merino Wool 24%, Polyester 6%, Spandex 3%. Flash Drying Snow Socks- Fast-dry vents to wick moisture away. ZIONOR special full plush loop design doubled the warmth, thickness and durability. Comfortable Fit – Arched stitch style for comfortable skiing and snowboarding. Reactive print tech provides fade-free features. Stay Up – Stay tight on foot for high elastic material and unique thread design on rib top. Key Protection – Impact-Resistance on toe parts with enhanced coverage, two rubber segments sole and ankle to stabilize and protect these parts from twist.