Journal / Fit & Design

Swimsuit straps digging in? Two ways we fix it.

Slim straps you set to how you swim. Wide straps built so they stay put. How each one works, and how to choose.

Leda Sport swimsuits in white and blue hanging on wooden Leda Sport hangers
The detail you notice later

You notice a swimsuit by its colour, its neckline, the line of the back. The straps come later.

The first time you lift your arms, you feel them. A thin line of pressure on the shoulder. A strap that needs fixing after every length. Small things, enough to take you out of the swim.

We design with that moment in mind: how a strap feels against the shoulder, how it moves with you, how it sits with the neckline.

Leda Sport working through swimsuit samples with designers at a table
Working through samples with our designers.

Two kinds of strap, one aim

A suit that stays where you put it, and a shoulder that forgets it is there.

Slim straps: set to how you swim

Every slim strap we make is adjustable. A hard session in open water asks for something different from slow laps on a Sunday, so the tension is yours to set.

Viva adjusts at the shoulder. Pura sets its tension with a tie-back. Cala, a bra-style top, adjusts at the cross-back.

Close-up of the slim adjustable shoulder strap on the matcha green Viva one-piece
Viva · adjustable shoulder straps
Back view of the Pura one-piece showing its lilac tie-back straps
Pura · tie-back, tension set by you
Back view of the syrah red Cala swim top showing its adjustable cross-back straps
Cala · adjustable cross-back straps

Setting the tension

  1. Swimming hard, or in open water. Set the straps closer. The suit should stay put as you reach and turn.
  2. Easy laps, time by the pool. Ease them a little. It should still feel steady when you move.
  3. Then check. Lift both arms, reach forward, turn side to side. Secure, not tight.
Fit noteViva suits a slim build and a longer torso, and is not recommended for D cup and above. For Cala, check underbust and cup fit. Each product page carries its own fit notes.

Wide straps: built to stay put

A wider strap spreads the pull across more of the shoulder. Width alone does not stop it sliding, and a strap built around one broad elastic band can still feel tight.

So the work is in the construction. Ours is made from the swimsuit fabric itself: two layers, inside and out, with a narrow strip at each edge, enclosed in an internal herringbone binding.

The fabric gives the softness against the shoulder. The strips hold the edges, so the strap keeps its line while you swim.

Inside a Leda wide strap · cross-section

Side stripholds the edge Outer layerswimsuit fabric Inner layersame fabric, against the shoulder Herringbone bindingencloses the strips
Close-up of a wide lilac fabric strap resting on the shoulder
The fabric strap where it rests on the shoulder.

Width, and the neckline it frames

We like a clear collarbone. So the width is measured: enough contact for the shoulder, a shape that suits the neckline.

Alma frames a sweetheart neckline. Verda pairs wide straps with contrast panels and a small front cut-out. Pona and Mira sit higher at the neck. Choose the line you like wearing; the construction underneath stays the same.

Close-up of the Mira one-piece high neckline in white and matcha green
Mira · a high neckline on a wide fabric strap
Close-up of a green V-neckline held by a wide fabric strap
A V-neckline held by a wider strap
Close-up of the Tenacy two-piece top in matcha green with a high neck and pink underband
Tenacy · wide straps on a two-piece top

Comfort and stability work together. The fabric spreads the pressure; the enclosed strips keep the strap steady as you move.

A woman in the Verda one-piece paddling out on a surfboard, reaching forward
Verda, reaching forward. The same check works at home: arms up, reach, turn.

Wide-strap styles to explore

Different necklines and coverage, one strap construction. Find the line you like, then check its fit notes.

Prefer a two-piece? Zeta, Tenacy and Siena also use wide straps. Rosa and Vela have a long-sleeve shoulder and sit outside this comparison.

The right strap is one part of the right fit

For a swim top, check underbust and cup. For a one-piece, use the style’s own measurements and torso notes, and our Size & Fit guide.

Three questions

Why do swimsuit straps dig in?

Usually the pull sits on a narrow strip of the shoulder: a thin strap, too much tension, or a size short in the torso. A wide fabric strap spreads it; an adjustable slim strap lets you ease it.

Are wide straps better for a fuller bust?

They spread the pull over more of the shoulder, which many women find more comfortable. Check cup and underbust fit too. Viva is not recommended for D cup and above.

How tight should swimsuit straps be?

Secure, not tight. Lift your arms, reach forward and turn: the suit should stay in place without pressing a line into the shoulder.

Less adjusting. More time in the water.

The detail that caught your eye should feel right on your shoulder too.

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