COVERAGE YOU CAN COUNT ON.With a classic racerback design, the Nike Dri-FIT Swoosh Sports Bra feels snug and secure while you move. Supersoft, lightweight fabric wicks sweat to keep you dry, comfortable and focused. While you practice, play or even just hang out-know that you're covered. Dri-FIT technology helps keep you dry and comfortable. Elastic chest band and racerback design gives a hugging, supportive feel. 3 layers on the front provide comfort and coverage. Flat seams feel smooth against your skin. Tight fit for a body-hugging feel Medium support 88% polyester, 12% spandex Machine wash Measurements: Length: 10.5 in Chest Measurement: 12 in Sleeve Length: 1 inProduct measurements were taken using size MD (10-12 Big Kids). Please note that measurements may vary by size.