Baleaf Women's Racerback Tank Tops Running Workout Shirt 90% Polyester/ 10% Spandex Imported Polyester wicks moisture away from skin, dries quickly and is soft to the touch while spandex offering enhanced mobility for a full range of motion Cool feeling fabric offers instant and prolonged cooling while hiking, running, working out Racerback styling allows arms complete range of movement and shaped hemline creates a flattering fit Flatseam construction minimizes irritation and chafing Reflective elements increase visibility in low-light conditions. Center back length(inch): XS=24.5", S=25.25", M=26", L=26.75", XL=28"