Product Name : Under Armour Tech T-Shirt In Blackout Navy Twist (Men) / Under Armour T-Shirts Model : Men Clothing 792 Under Armour Tech T-Shirt in Blackout Navy Twist. The T-Shirt that started the legacy of the performance revolution. Crafted from lightweight, natural-feeling synthetic with moisture wicking and dry fast technology to keep you cooler and drier. Fabric: This product is 100% polyester.Product Care: Machine wash at 30c. Do not tumble dry.