HeatGear® is our original performance baselayer the one you put on first and take off last. So we made this short sleeve extra comfortable by wicking sweat and stretching so you can move no matter what.Features:- New, innovative Neolast™ fibers provide powerful stretch, durability, comfort & improved wicking- NEOLAST™ is a high-performing alternative to elastane designed to begin addressing sustainability challenges associated with elastane- Material wicks sweat & dries really fast- 4-way stretch material moves better in every direction- Fitted: Streamlined fit that's not too tight or too loose.Specifications:- Material: 80% Polyester/20% Elastoester