80% Nylon, 20% Spandex MOISTURE WICKING FINISH-made with high-quality nylon material with an added spandex elastic fiber which is thick but soft, sweat-wicking and not to shrink Built in Bra:Athletic tank tops built in shelf sports bra with medium support to against shock, elastic band inside prevent the bra from shifting Crop Length: Ribbed Seamless cropped tank top is just below the belly button Ribbed crop workout tops is perfect for Yoga, Pilates, light gym training, running or daily activewear. Wash separately, Hand wash, Do not bleach, Line dry, Do not iron, Do not dry clean Size：S 30A/B/C, 32A. M 30D/DD 32B/C/D/DD, 34A/B. L 34C/D/DD, 36A/B. XL 36C/D/DD, 38A/B