When performance means everything, start strong with the Under Armour Heatgear Og Compression SL. Built with thicker HeatGear fabric and advanced sweat-wicking technology, this sleeveless top keeps you cool and dry through the toughest sessions—while minimizing pinching, snagging, and chafing. The four-way stretch material moves with you for unrestricted mobility, and the light, tight fit delivers optimum muscle compression to support your core and boost endurance. Train harder, recover faster, and feel unstoppable in the Under Armour Heatgear Og Compression SL. Under Armour Heatgear Og Compression SL features: