Under Armour Armourvent Tank - Women's Iso-Chill construction helps dissipate heat from the body creating a cooling effect ArmourVent mesh delivers true breathability in a light, stretchy, durable, fast-drying fabric Signature Moisture Transport System wicks sweat to keep you dry and light Lightweight Lightweight, 4-way stretch construction improves mobility and maintains shape Anti-microbial technology keeps your gear smelling fresher, longer