Iconic Speedo Style. This sporty black Muscleback swimsuit features a curved splice of our new ‘shattered’ Boom logo print in electric pink. Great for longer swim sessions, the muscleback style enables your child to achieve a full range of motion during their swim. Made from our soft Endurance10 fabric, it provides higher chlorine resistance than standard swimwear fabrics and fits like new for longer with CREORA® HighClo™.