COMPRESSION & SUPPORT: The Nike sports bra for women utilizes a snug compression fit, providing medium support for a variety of training activities. RACERBACK DESIGN: Straps create stabilizing tension, helping to minimize bounce during multidirectional movement. The sports bras' racerback straps allow for a full range of motion. JERSEY MATERIAL: The Nike sports bra has an outer body and inner lining made of jersey material. The sports bra pulls sweat away from the skin to keep you dry and comfortable . COMFORTABLE FIT: The women's sports bra has an elastic encased chest band that feels soft against the skin and provides a secure and comfortable fit. NIKE SPORTS BRA: Machine wash, imported, fabric: 88% polyester/12% spandex.