■ Product Description Under Armour UA HeatGear Armour Compression Short Sleeve Mock (Baseball / Short Sleeve Base Layer / MEN) Item No.: 1313256 ・Compression: A close-fitting type. ・Uses a fabric with excellent stretch. Boasts high sweat absorption and quick-drying properties, making it easy to move in any action. ・Ventilation on the back. ・Jock tag (baseball-specific) on the right hem for writing a number. ・Moisture Control: Quickly absorbs moisture from sweat, wicks it away to the outside, and keeps the athlete's body dry at all times. ・4-Way Stretch: Excellent stretch in 4 directions, allowing for smooth movement in all directions. ・Anti-Odor: Inhibits the growth of odor-causing bacteria and provides an anti-odor effect. ・UV Protection: Cuts over 90% of ultraviolet rays and protects the body. ・Breathability: High breathability keeps athletes cool. ・Flatlock Seams: Flatlock seams provide a comfortable feel against the skin and reduce stress. ・84% Polyester, 16% Polyurethane