What's it do? We flattened out the fibers 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. Product DNA - 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 - Odor control technology minimizes odor - Loose: Fuller cut for complete comfort. - Style #: 1383364 - Reflective details - 90% Nylon/10% Elastane - Imported