From Polo Ralph Lauren, these shirts feature:  Anti-odor mesh insert at the underarms Cooling and moisture-wicking properties Four-way stretch and flat seams that ensure ease of movement and a comfortable fit that is ideal for layering Classic fit Crew neckline Short sleeves Pullover construction Signature embroidered pony at the front-left hem Body and mesh gusset of cotton/modal/elastane. Machine wash/tumble dry Imported.