Under Armour Max Vent Run Vest - Men'sStay light and sweat free while you run fast in the Under Armour Max Vent Running Vest. Made with ArmourVent mesh technology, this running vest is light and has a truly breathable design. This design helps you set PRs while staying sweat free. Durable ripstop fabric ensures that this awesome jacket holds up over time so you can conquer your long-term fitness goals with lightweight and breathable comfort. Back and side mesh increases ventilation. For safer runs at dusk or dawn, 360º reflectivity increases visibility. Media pocket on chest. Drop tail hem offers ideal coverage. 100% polyester. Imported.