Features: High comfort and breathability High quality material prevent abrasion and increase the longevity Reinforced heel and toe for great durability Acrylic Pillex ™ technology against fraying Compression zones 70% acrylic, 28% nylon, 2% spandex S/M = UK 6.5-8.5 M/L = UK 8.5-12 SKU: 1537178 Dakine Mens Freeride Snowboard Ski Socks