HeatGear Armour Long Sleeve

The Under Armour HeatGear Armour Long Sleeve is the foundational baselayer that law enforcement, military personnel, and tactical operators depend on when performance under pressure matters most. Designed as the first layer you don on duty and the last you remove, this long-sleeve baselayer serves as the thermal and moisture-management foundation for everything worn on top—whether that's ballistic protection, tactical vests, or cold-weather gear. Across patrol shifts, training operations, and field deployments, operators need a baselayer that regulates body temperature without adding bulk, and the HeatGear Armour delivers exactly that mission-critical function.

Under Armour's proprietary HeatGear technology actively wicks sweat away from skin to the fabric surface, where it evaporates rapidly—keeping you dry and focused during high-intensity activity or extended wear under heavy gear loads. The fabric stretches four-way, allowing unrestricted movement through tactical drills, climbing, bending, and dynamic weapon manipulation without binding or creating pressure points. The engineered construction resists odor accumulation and maintains its moisture-wicking properties through repeated field washing, making it a durable choice for the wear cycles tactical gear endures.

This long-sleeve baselayer is ideal for year-round duty wear, cold-weather operations, and any environment where sun exposure or abrasion prevention is a concern. The fitted cut sits flush under body armor and tactical carriers without creating voids or shifting during movement, maintaining consistent thermal regulation and comfort throughout extended shifts. Available in standard sizing to match individual frame requirements, the HeatGear Armour Long Sleeve integrates seamlessly into any tactical loadout—from academy training to advanced operations.