Under Armour Speed To Burn Short Sleeve Top Women's Say hello to the new tech top! The Under Armour Speed to Burn Short Sleeve Top features a truly modern silhouette made from the quality technical fabrics weve known and loved from Under Armour. Athletes and runners will love the benefits of wearing the lightweight Reactor material thats designed to keep your body heat in or out when needed. This adaptability really makes this top a must-have for your training wardrobe. Fitted, next-to-skin feel without the squeeze.Reflective UA logo at left sleeve and at back yoke.Super, flexible performance fabric provides a clean, classic look.Specialized panels at high-heat zones offer enhanced comfort.Features free-cut material at the wrist with built-in thumb holes for added coverage. Sizing Small: 34.5-35.5" bustMedium: 36.5-38" bustLarge: 39.5-41" bustExtra Large: 43-45" bust*Measurements refer to body size, not garment size.