2NDS . SmartWooland#39;s PhD ultralight ski socks offer the all-day performance of moisture-wicking merino wool, and add medium weight cushioning in the shin and throughout the foot for shock-absorbing comfort that lasts from the first run to last chair. Available Colors: BLACK, BLACK/ORANGE, GRASSHOPPER, GRAPHITE, CRIMSON, NAVY, SMARTWOOL GREEN. Sizes: L, M, XL, XS, S.