CEP Men&rsquo;s Winter Ski Merino Compression Socks for Performance 67% Polyamide, 23% Wool (Merino), 10% Spandex CEP Ski Merino Socks: Perform and stay warm. Our finest blend of merino wool provides functional compression for winter sport athletes. CEPs unique design enhances ski-boot fit while reducing muscle fatigue and swelling. Perfect for the slopes. Support Socks: Anatomical design fits your calf, ankle, and foot like a second skin. Strategically placed padding absorbs shock and prevents blistering while supporting ankle stability. CEP Ski Merino is designed for the perfect boot fit. Graduated Compression; 20-30 mmHg graduated compression. Medical grade technology is scientifically proven to increase blood circulation by 40%. Feel lighter on your feet and less fatigued with the best performance ski sock. Comfort & Quality: Padded cushioning on the heel and arch provides comfort while absorbing shock. Wool blend sustains warmth while wicking moisture, keeping skin dry. Seamless toe closure provides a flexible fit. Perfect for skiing and snowboarding 67% Polyamide, 23% Wool (Merino), 10% Spandex