Iso-Chill fabric helps disperse body heat, making it feel cool to the touch Mesh back panel for ultimate breathability 4-way stretch construction moves better in every direction Material wicks sweat & dries really fast Split back design can be worn open or tied up for a slimmer, more secure fit Reflective details for low-light runs Style #: 1361925 90% Polyester/10% Elastane Imported Fitted: Streamlined fit that’s not too tight or too loose. Machine wash cold with like colors Use only non-chlorine bleach when needed Tumble dry low Do not iron Do not use softeners Do not dry clean