The Nike G87 Tank Top: Premium comfort and mobility. The Nike G87 Women's Tank Top features a racerback style along with sweat-wicking fabric for enhanced range of motion and comfort. Benefits. Dri-FIT fabric to wick sweat away and help keep you dry and comfortable. Racerback for enhanced range of motion. Flat-seam construction to minimize chafing. Additional Details. Fabric: Dri-FIT 88% polyester/12% spandex. Machine wash. Imported.