Look your best in the Under Armour Men's Tech Vent Short Sleeve T-shirt. It is made of 100% polyester. The moisture wicking technology wicks away sweat and dries fast, and its anti-odor technology prevents the growth of odor-causing microbes. The 4-way stretch material moves better in every direction. Under Armour Men's Tech Vent Short Sleeve T-Shirt Green Dark, Medium - Men's Athletic Performance Tops at Academy Sports