Under Armour UA Launch Elite Short Sleeve Women's. This shirt is designed with Iso-Chill fabric that helps disperse body heat, making it feel cool to the touch. It features strategic laser perforations for added ventilation and 4-way stretch material that moves better in every direction. The fabric wicks sweat and dries really fast. It has a shaped, side-vent hem and odor control technology to minimize odor. The Under Armour Microthread fabric dries quickly, does not stick to the body, stretches without absorbing sweat and is recyclable. Mesh inserts provide better ventilation, and reflective details are included for running in low light conditions.