Under Armour - Heatgear No Show 3 Pack Socks - BlackUnder Armour Heatgear No Show 3 Pack Socks in Black. Featuring Moisture Transport System to wick sweat away from your body, the seamless toe and contoured ‘Y’ heel provide a comfortable snug fit. Embedded arch support. Pack of 3 pairs.Fabric: This product is Polyester / Nylon / Elastane.Product Care: Machine wash 40C. Do not tumble dry.