The Under Armour Womens Crossback Sports Bra provides support so you can power forward. Ideal for working out and boxing, this sports bra features a stylish crossback design, a solid band with UA lettering, and mesh lining. Wear it under a loose tank top for style at the gym and beyond. The Under Armour Crossback Sports Bra is made of 87% polyester/13% elastane. Lining: 80% nylon/20% elastane. Imported. Sizes: S-XL. Colors: Charcoal Light, Level Purple/Level Purple. Type: Bras.