Nike Swim Women's Poly Solid Racerback One Piece is a performance swimsuit made from chlorine-resistant solid-colored knit fabric. It offers medium support, moderate back coverage and standard leg openings that maximize your range of motion. The flat seams and full lining add to the comfort factor in this women's swimsuit. MEDIUM BUST SUPPORT Regular straps for more support and comfort STANDARD LEG OPENING Engineered for an ideal fit that maximizes coverage and range of motion MODERATE BACK COVERAGE More overall back coverage without sacrificing range of motion FLAT SEAMS for reduced chafing and ergonomic construction LINED for better fit and security