Be ready for your next swim competition in the Nike Women's HydraStrong Solid Racerback 1-Piece Swimsuit. This 1-piece swimsuit is made of Nikeâ⢠HydraStrong fabric with a polyester lining to provide long-lasting durability. The flat seams and full lining add comfort and durability, while the racerback design provides moderate back coverage. Nike Women's HydraStrong Solid Racerback 1-Piece Swimsuit Purple, 36 - Women's Competitive Swim at Academy Sports