Speedo Womens Hyperboom Splice Muscleback
Speedo Women's Hyperboom Splice Muscleback
Part of Speedo's iconic Hyperboom collection, the Women's Hyperboom Splice Muscleback is a high-performance one-piece training swimsuit built for serious swimmers. A navy body with bold blue Hyperboom splice panels on the sides delivers a striking, streamlined look, while the muscleback design allows full freedom of movement through the shoulders. Made from Speedo's Endurance Pro fabric — constructed from 100% recycled yarns — for four-way stretch, chlorine resistance, and lasting durability.
Who It's For
Ideal for women in squad training, lap swimming, or regular recreational swimming who want a performance-focused one-piece with a secure, streamlined fit. The muscleback design is a favourite for active swimmers who need unrestricted shoulder movement. Available in sizes 10 and 14.
Key Features
- Endurance Pro fabric — 100% recycled yarns with four-way stretch, chlorine resistance, and pilling resistance for long-lasting performance
- Muscleback design — Wide open back for unrestricted shoulder movement and a secure, streamlined fit during training
- Hyperboom Splice panels — Bold blue splice panelling on a navy body for a striking, performance-inspired look
- 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
- Speedo logo badge — Branded chest detail
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 allows full freedom of movement through the shoulders and reduces drag in the water, making it a popular choice for training and competitive swimmers.
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 sizes are available?
Available in sizes 10 and 14. Refer to the Speedo size guide or contact us for fit advice.