Size Medium. A bold-yet-subtle way to show some style at the gym! The Laced Up Crop Top has lace detailing up the back and built-in bra for medium support. Rec to size down as it does run large. Thicker, Compressive, Sweat-wicking Sculpt Fabric. 87% Nylon, 13% Spandex. Machine wash cold, with like colors. No bleach, fabric softeners, or dry cleaning.