Start strong, finish stronger. The Under Armour Men's Tactical HeatGear Compression S is your go-to gear for peak performance. Built for comfort, mobility, and durability, this base layer keeps you cool, dry, and ready for action—whether you're training hard or tackling the toughest missions. The super-light HeatGear fabric delivers superior coverage without weighing you down, while the four-way stretch material moves better in every direction for unrestricted mobility. From training to challenging conditions, the Under Armour Men's Tactical HeatGear Compression S has your back.