UA flattened out the fibres and added some science to create a game-changing fabric that quickly pulls heat away from the skin-keeping you calm, cool, and crushing at max capacity.. Features:. Iso-Chill fabric helps disperse body heat, making it feel cool to the touch. Strategic laser perforations for added ventilation. 4-way stretch material moves better in every direction. Material wicks sweat & dries really fast. Shaped, side-vent hem. Odour control technology minimizes odour. Reflective details. 90% Nylon/10% Elastane. Imported. Fitted: Streamlined fit that’s not too tight or too loose.. Care:. Machine wash cold with like colours. Do not use softeners. Use only non-chlorine bleach when needed. Tumble dry low. Do not iron. Do not dry clean