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Swimwear Style Guide
Back style changes how a swimsuit feels in the water. Strap width, coverage and construction all affect support, shoulder movement and comfort over a long session in the pool.
Here's how each Maru style compares, so you can choose the right one for your needs.
Women's styles Girls' styles Compare styles
Women's styles
Styles to suit your needs
Tri Back
A wide, solid back with a thicker centre strap that splits around the neck. Gives the most support and coverage, and stays put through starts and turns.
Best for: high-volume training across all four strokes
Ace Back
Thin shoulder straps meet in a V, then sweep out to the sides above a keyhole opening. A secure fit with more shoulder freedom than the Tri Back
Best for: maximum shoulder freedom with a secure fit
Swift Back
Thin binding straps over a low open back for a streamlined, low-bulk feel over longer sessions in the pool.
Best for: freestyle and butterfly swimmers who want minimal bulk
Tie Back
Crossed binding straps tie across the back so you can set the tension and fit yourself. Especially useful for those who prefer more control over bust support
Best for: anyone who wants an adjustable fit.
Girls' styles
Styles built for younger swimmers
Racer Back
A solid back with wide straps meeting in the centre. For maximum support.
Best for: swimmers building up their training volume
Auto Back
Wide should straps joined by a band across the back. For a secure, supportive fit throughout routine training.
Best for: younger swimmers building up their training volume
Fly Back
Thin binding straps join in the centre for a streamlined, low-bulk fit and freer shoulder movement.
Best for: freestyle and butterfly swimmers who want minimal bulk
Tie Back
Crossed binding straps tie across the back for a fit you can adjust as swimmers grow.
Best for: growing swimmers who need a fit you can adjust
Compare styles
Not sure where to start? Pick the row that matches what matters most to you.
| If you want… | Women’s | Girls’ |
|---|---|---|
| Maximum support | Tri Back | Racer Back |
| Secure fit with more shoulder freedom | Ace Back | Auto Back |
| Minimal bulk and free shoulders | Swift Back | Fly Back |
| A fit you can adjust | Tie Back | Tie Back |
Found your style?
Check our size guide to find the right fit, then browse the range.
