With all the features you need to work, sweat, and rest, these socks will get you through your whole day (and then some). Designed for Training. No-show Length. PerformaHeel is 3D knit with dual yarns to provide stretch and integrated micro-cushioning while creating a shaped fit that stays put. Active grip tab heel helps keep these socks in place. ErgoToes foot-specific design. 360 degree arch support. Seamless toe construction. 'Wash with like colours', 'Machine wash cold', 'Do not bleach', 'Tumble dry low', 'Do not iron', 'Do not dry clean', 'Imported'. Anti-Stink, SilverescentTM Technology. All: 89% Nylon, 6% Lycra elastane, 5% X-static nylon.