This is an UNDER ARMOUR compression T-shirt. I am selling it because I gained weight after purchasing it and it no longer fits. Features HEATGEAR technology. As you can see in the photos, the fabric is switched according to the function, and I think you can sweat comfortably. 【Brand】UNDER ARMOUR 【Condition】Like new 【Size】XL 【Color】Gray系 (Gray-based) 【Material】84% Polyester, 16% Polyurethane Thank you.