Smooth, lightweight fabric with stretch offers comfort CREORA® HighClo™ fabric with high chlorine-resistance ensures a long-lasting fit Endurance®10 fabric provides long-lasting shape-retention Muscleback design allows full range of motion Quick drying Logo details add classic finish Material composition: 53% Polyester, 47% PBT More Info Sport: Swimming Product code: SD812859B344 Speedo Kids' Boom Splice Muscleback One-Piece Swimsuit (Older Kids)