The Nike Epic Lights Lingerie Tank Swimsuit for women features an ultra open back, low neckline and double micro straps for enhanced range of motion and support. The daring fit with minimal coverage is designed to minimize tan lines. This Nike Team Suit is the perfect go-to swimwear for great fit, functionality, comfort and support. It's the ideal Nike Team Swim Suit for outdoor practice or racing at your next competitive swim meet!NIKE Performance Poly: 100% Polyester