Le Bent Definitive Ultra Light Ski Socks - Men's: Our Ultra Light ski sock is a true performance fit. For those wishing for a tight fit with added shin protection and our Platinum Blend of merino and bamboo rayon for superior warmth and comfort. Our most performance fitting sock in the range. Yarn: 58% Bamboo, 24% Merino, 15% Nylon, 3% Elastane