Sizing: Small: Women's 5-7.5 Medium: Women's 8-10.5, Men's 6-8.6 Large: Women's 11-13.5, Men's 9-13 Extra Large: Men's 14-16 Light, breathable, and comfortably snug. This slightly thinner mini crew sock offers soft support, airy ventilation, and a barely-there feel that still delivers all-day performance. We love it for: daily miles Mini Crew Length 6" height for just-right coverage Light cushion is slightly thinner for a lower-volume fit Mesh ventilation features breathable zones above and below the arch Moisture-Wicking design pulls sweat away to help prevent blisters Arch supports & snug compression for a secure feel Left/Right Fit Anatomically designed for left and right foot shape Seamless toe and heel to reduce friction