Dri-FIT fabric to wick away sweat and help keep you dry and comfortable. Mesh panels for zoned breathability. Built-in shelf bra for support and minimal bounce. Raglan sleeves and underarm panels for natural range of motion. Mock neck that zips up to the chin for warmth. Flat seams to help minimize irritation caused by chafing. Back lining at top and bottom. Fabric: Body: Dri-FIT 81% polyester/19% spandex. Underarm panels: Dri-FIT 100% polyester. Lining: Dri-FIT 88% polyester/12% spandex. Machine wash. Imported.