Nike's most supportive bra yet, this women's Pro Rival Bra means focused performance wherever you work out. Crafted from Dri-FIT fabric, the bra pulls sweat away from the skin to help keep you dry and comfortable, while a keyhole opening to the back and perforations in the lining of the cups allow for further ventilation. Offering high support, the bra boasts a racerback design to enhance the range of motion, while bonded seams reduce irritation and provide a super-soft feel against the skin.. Material: 70% Nylon/30% Elastane