Columbia Women's Zip Front Bra, 88% Polyester, 12% Spandex Imported Machine Wash High support for cross training, running, biking Lock down zipper and fabric tab protector to avoid chaffing. Zip front provides ease of on and off Racer back design for range of motion and mesh back insert for breathability Omni-wick advanced evaporation pulls moisture away from the body and enables perspiration to evaporate quickly, keeping you dry and comfortable Removable cups and princess seam for shaping. Elastic at inner armhole and neckline for support