Elasticated top area Strengthened toe area Engineered heel for great fit These socks are sold in units containing 3 pairs of socks, therefore a carton of 50 contains 50x 3 pairs of socks (150 pairs), a pack of 10 contains 10x 3 pairs of socks (30 pairs) & single is for 3 pairs of socks Size (to fit) M 4-7 L 7-11 All underwear is non-returnable if worn Fabric 72% cotton, 27% Polyester, 1% Elastane