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. Laser perforations on back panel for ultimate breathability. 4-way stretch material moves better in every direction. Material wicks sweat & dries really fast. Specs:. Style #: 1389802. 90% Polyester/10% Elastane. Imported. Fit & Care:. Fitted: Streamlined fit that’s not too tight or too loose.. Machine wash cold with like colours. Use only non-chlorine bleach when needed. Tumble dry low. Do not iron. Do not use softeners. Do not dry clean