New Balance Clothing Size Guide You set the pace in this New Balance® bra. NB Dry fabric pushes perspiration away from the body and towards the surface for rapid evaporation. Perfect for medium-impact sports. Scoop neckline. Racerback design provides a wider range of motion. Thin racerback design creates a wider range of motion. Keyhole cutout and mesh panels for added breathability. Banded hem is supportive and helps keep things in place. 87% polyester, 13% elastane.Body 2: 81% nylon, 19% elastane.Lining: 87% polyester, 13% elastane. Lining 2: 100% nylon. Machine wash, tumble dry. Imported.