Speedo Girls Hyperboom Splice Muscleback
Speedo Girls Hyperboom Splice Muscleback — Peach
Part of Speedo's iconic Hyperboom collection, the Girls Hyperboom Splice Muscleback is a high-performance one-piece training swimsuit built for junior swimmers. Made from Speedo's Endurance Pro fabric — constructed from 100% recycled yarns — it delivers four-way stretch, chlorine resistance, and lasting durability in a fresh Peach colourway with Speedo's signature splice panelling.
Who It's For
Ideal for girls in squad training, swim school, or regular recreational swimming who want a secure, performance-focused one-piece with a classic muscleback fit. The muscleback design allows full freedom of movement through the shoulders, making it a favourite for active junior swimmers. Available in sizes 6, 8, and 12.
Key Features
- Endurance Pro fabric — 100% recycled yarns with four-way stretch, chlorine resistance, and pilling resistance for long-lasting performance
- Muscleback design — Classic training back style for unrestricted shoulder movement and a secure, streamlined fit
- Hyperboom Splice panelling — Bold Peach colourway with Speedo's signature colour-block splice design
- Chlorine resistant — Resists chlorine for long-lasting fabric performance through frequent pool use
- Pilling resistant — Fabric maintains its appearance and durability over time
- Four-way stretch — Moves with the body for unrestricted performance in the water
Fabric Technology
- Endurance Pro — All the performance credentials of Endurance+, constructed from 100% recycled yarns. Body made of 57% recycled polyester and 43% recycled PBT. Designed for durability with four-way stretch, chlorine resistance, and pilling resistance — better for the environment without compromising on performance.
Frequently Asked Questions
What is a muscleback swimsuit?
A muscleback swimsuit features a wide, open back design that exposes the shoulder blades and upper back. It is a popular choice for training swimmers as it allows full freedom of movement through the shoulders and reduces drag in the water.
Is the Speedo Hyperboom Muscleback chlorine resistant?
Yes. It is made from Endurance Pro fabric which provides excellent chlorine resistance, maintaining the fabric's performance and appearance through frequent pool use.
Is the fabric eco-friendly?
Yes. Endurance Pro is constructed from 100% recycled yarns — 57% recycled polyester and 43% recycled PBT — reducing environmental impact without compromising on performance or durability.
What is the difference between the Hyperboom Muscleback and the Hyperboom Legsuit?
The Muscleback is a standard one-piece swimsuit with a classic training cut, while the Legsuit features longer-length legs extending to the knee for extra coverage. Both are made from the same Endurance Pro fabric and are part of the Hyperboom Splice collection.