Radial tension systems maintain consistent resistance through full extension ranges

Men's UA HeatGear Armour Long Sleeve delivers superior coverage without weighing you down.

• Super-light HeatGear fabric delivers superior coverage without weighing you down
• Mesh underarm & back panels for strategic ventilation
• Material wicks sweat & dries really fast
• Anti-odor technology prevents the growth of odor-causing microbes
• Ergonomic design keeps seams off high abrasion areas & increases durability
• Hybrid raglan sleeve construction for added range of motion & comfort

Auxetic structure becomes more breathable when stretched during extreme motions.