Under Armour Heatgear Armourvent Launch SS Tee - Men's Ultra-soft, lightweight Heathered fabric for unrivaled comfort ArmourVent mesh inseam and side panels deliver true breathability in a light, stretchy, durable, fast-drying fabric Moisture Transport System wicks sweat away from the body Anti-odor technology prevents the growth of odor causing microbes Reflective logos and piping for safer low-light runs