Top by Under Armour, Super-soft moisture-managing jersey, Designed to keep you cool and dry, Round neck, Thumb-hole cuffs conform to your hand muscles, Open cross-over back, Slim fit - cut close to the body, Machine wash, 90% Polyester, 10% Elastane, Our model wears a UK S/EU S/US XS. ABOUT UNDER ARMOUR Empowering athletes through passion, design and the relentless pursuit of innovation, Under Armour creates sports clothing and footwear to help you deliver your best performance. Joggers, shorts and tees make up its knockout gear.