Stay cool and focused with the Under Armour UA Vanish Seamless Short Sleeve shirt. Designed with seamless construction in high-friction areas to reduce rubbing and engineered mesh ventilation where you sweat most. This shirt features soft knit fabric, a nearly sew-free design to prevent chafing, and 4-way stretch material for better movement. It also wicks sweat quickly, dries fast, and incorporates odor control technology to minimize odor.