COMFORTABLE FIT, ENHANCED VENTILATION The Nike Lightweight No-Show Socks (3 Pair) are made with mesh panels and a stretch cotton blend for breathability and a snug, soft feel. Benefits Y-stitch heel pocket for a comfortable fit Mesh panels for enhanced ventilation Reinforced toe for durability in high-wear area Product Details Fabric: 70% cotton/27% nylon/3% spandex Machine wash Size Chart MEN\'S & WOMEN\'S (unisex) XS S M L XL XXL Europe 30-34 34-38 38-42 42-46 46-50 50-54 UK 12 - 2 2 - 5 5 - 8 8 - 11 11 - 14.5 14.5 - 15.5 Men\'s US - - 5.5 - 8.5 8.5 - 12 12 - 15.5 15.5 - 19.5 Women\'s US - 3.5 - 7 7 - 10 10 - 13.5 - -