Under Armour HeatGear® Short Sleeve Boys. HeatGear® 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. Super-light HeatGear® fabric delivers superior coverage without weighing you down. Mesh underarm & back panels for strategic ventilation. Material wicks sweat & dries really fast. Ergonomic design keeps seams off high abrasion areas & increases durability. Hybrid raglan sleeve construction for added range of motion & comfort. Showcase your best performance in the Under Armour Kids Heat Gear Armour Short Sleeve Top in Black and White, crafted with HeatGear fabric that feels super soft against your skin for ultimate comfort without weighing you down. The Under Armour Kids Heat Gear Armour Short Sleeve Top is designed with strategically placed mesh panels that encourage air flow for targeted ventilation. Its moisturewicking fabric moves sweat away from your body for quick evaporation that leaves you feeling dry and fresh during highintensity training. 4way stretch construction also allows for better movement in every direction, with ergonomic flatlock seams reducing friction to minimise chafing and encouraging full range of motion. HeatGear fabric Strategic mesh panels 4way stretch construction Moisturewicking fabric Ergonomic flatlock seams 90 polyester, 10 elastane