HeatGear® Armour is our original performance baselayer—the one you put on first and take off last. So we made it extra comfortable by wicking sweat and stretching so you can move no matter what. Fit & Design: Fitted short sleeve shirt 4-way stretch material moves better in every direction Strategic mesh panels for increased ventilation Ergonomic flatlock seams for added comfort and mobility Under Armour® logo and branding on left chest Crew neckline provides a nonrestrictive fit Technology: HeatGear® fabric is ultra-soft & smooth for extreme comfort with very little weight Built-in 4-way stretch construction moves better in every direction Material wicks sweat and dries fast to keep him comfortable Anti-odor technology prevents the growth of odor-causing microbes to keep him fresh Additional Details: Recommended care: Machine wash cold with like colors; tumble dry low. Do not iron, do not use softeners, do not dry clean