. . . "The Nike?? women's tri top is a blend of support, comfort and performance. ?? Cooling Polyester??? uses all natural fibers to remove heat from the skin.- UV protection.- Moisture control removes sweat.- 2-way air ventilation. ?? Bra is brushed with elastic to increase comfort. - Inner bra is constructed around the entire circumference of the tri top to increase the support.- 2 layers in the front" .