How To Choose The Perfect Swimwear For Your Pregnancy Journey

If anyone deserves a little beach escape or poolside retreat, it’s you, mama. And the number one thing to get right is choosing the right pregnancy swimwear.

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That doesn’t just mean sizing up. You need swimwear designed specifically for comfort, support and your changing shape. It’s not just your bump that’s evolving - your bust, hips and even skin sensitivity can shift too. And let’s be honest, nobody wants an ill-fitting, unsupportive swimsuit riding up in all the wrong places.

Our swimwear is made to move with you through every trimester. Read on to discover what to wear at each stage, the key features to look for and how maternity swimwear sizing actually works.

Why do you need maternity swimwear?

Maternity swimwear supports your body as it changes, with thoughtful features that boost both comfort and confidence.

As your body changes – bump grows, breasts become fuller, skin feels more sensitive – finding the right swimwear suddenly matters a lot more. Our maternity swim styles go beyond standard fits, offering features like:

Built-in bra and bump support
Wider shoulder straps for better weight distribution
Side-ruching and extra-stretch elastane that moves with you without losing its opacity
Gentle shaping that supports without digging in or feeling restrictive

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Trimester 1: Subtle & supported

Even if your bump isn’t very visible yet, your body is already going through plenty of changes behind the scenes. Hormones can cause your breasts to increase in size, while bloating can make waistbands feel tighter and less comfortable than usual. At this stage, it's best to avoid underwires if breasts are tender and opt for soft cups, stretchy fabrics and adjustable straps so you can fine-tune the fit. In terms of style, a maternity tankini or high-waisted bikini offers the perfect blend of support and flexibility (and they make bathroom breaks that little bit easier). Our classic nautical stripe sets are great for concealing smaller bumps, too.

Trimester 2: Time to show off

Your second trimester is often when things start to feel a little more comfortable again. Energy levels pick up, your bump becomes more visible and you might finally feel ready to show it off a little. Lean into swimwear that celebrates your shape; a classic V-neck maternity swimsuit or high-rise bikini is perfect for flattering your silhouette while still feeling supportive and comfortable. Go for bold prints and uplifting colours that give you that extra boost of confidence - perfect for those babymoon photos.

Trimester 3: Weightless in the water

By trimester three, high-stretch fabric becomes completely non-negotiable. Your bump is at its biggest and your body is working overtime, so the last thing you want is swimwear that feels tight, restrictive or unsupportive. Look for wide straps and a supportive U-shaped back to help distribute weight evenly while you swim. Details like built-in bust support and quick-drying fabrics can also make a huge difference when you’re feeling warmer than usual (which, let’s face it, is basically all the time in trimester three). Most importantly, your swimwear should help you feel secure and comfortable enough to properly enjoy those moments of rest and relaxation before baby arrives.

Top tips on sizing

1. Start with your pre-pregnancy size

Most maternity swimwear is designed using your pre-pregnancy clothing size, with extra stretch and room built in for your growing bump and changing shape.

2. Prioritise stretch & adjustability

For a more comfortable fit, look for elastane on the labels for suitable stretch, as well as adjustable straps and ruched details that adapt with your body throughout each trimester.

3. Consider bust support

Your bust size can fluctuate during pregnancy, so features like soft cups, built-in support and wider straps can make all the difference.

How To Choose The Perfect Swimwear For Your Pregnancy Journey

Why do you need maternity swimwear?

Trimester 1: Subtle & supported

Trimester 2: Time to show off

Trimester 3: Weightless in the water

Top tips on sizing

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