Under Armour Tech Training Vest Made from Under Armour Tech fabric, this feels just like your favourite gym T-shirt but gives you room to breathe. It is your new favourite tank top. The Under Armour Tech Training Vest is a lightweight, highly comfortable training vest which provides a comfortable, very soft and unrivaled natural feel thanks to its Tech Fabric as well as its moisture transport properties which help keep your body dry whilst wicking sweat away from your skin. Even when your training heats up you can keep cool and fresh as the anti-odour technology will reduce any undesired body odour by preventing the growth of odour-causing microbes.