Lightweight Maternity One-Piece Swimsuit – Belly Support

Flexvibe soft support maternity activewear in Core Color, daily comfort main product image

Flexvibe Maternity One-Piece Swimsuit | Slim-Fit, Belly Support, Quick-Dry, 6 Colors, S–XL

$35.80

$35.80 $43.00

Buy 2 get 10% off - code FV10

ColorNavy Blue

Size S M L XL

Find your fit

Size Guide

All measurements are body measurements in inches. If you are between sizes, choose the larger size for a more relaxed feel or the smaller size for a more held-in fit.

Maternity & Postpartum

Size	US	Bust	Under-bump Waist	Hip
S	4-6	34-36	29-31	36-38
M	8-10	37-39	32-34	39-41
L	12-14	40-42	35-38	42-45
XL	16	43-45	39-42	46-49
XXL	18	46-48	43-46	50-53

Start with your pre-pregnancy size, then size up when you want more room through the bump, belly, or hips.

Flexvibe Maternity One-Piece Swimsuit | Slim-Fit, Belly Support, Quick-Dry, 6 Colors, S–XL

How To Measure

Measurements should be taken directly on your body.

Bust: Measure around the fullest part of your bust, keeping the tape level.

Under-bump Waist: Measure around the lower belly where maternity waistbands usually sit.

Hips: With feet together, measure around the widest part of your hips.

See more on our Size Guide.

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30-Day Returns

The Flexvibe Maternity One-Piece Swimsuit is a slim-fit, lightweight maternity one-piece with high-stretch belly support, made from premium quick-dry, breathable, non-irritating swim fabric for beach vacations and swimming during pregnancy. The high-stretch belly support accommodates your growing bump through all trimesters, while the lightweight texture keeps you comfortable without feeling heavy or waterlogged. Gentle on pregnancy-sensitive skin. Available in 6 colors, S–XL.

Quick Fit Snapshot

Best for beach vacations and swimming throughout all trimesters
Fabric premium swim fabric — quick-dry, breathable, non-irritating
Support high-stretch belly support — accommodates growing bump
Design slim-fit one-piece — lightweight, flattering
Sizes S, M, L, XL · 6 colors

MaternityBeachOne-PieceBelly SupportQuick-DryAll Trimesters

✓ High-stretch belly support✓ Quick-dry breathable✓ Non-irritating sensitive skin✓ Lightweight slim-fit

Product Features

Belly Support & Swim Fabric

High-stretch belly support — accommodates your growing bump through all pregnancy trimesters
Premium quick-dry, breathable swim fabric — dries fast and stays comfortable after swimming
Non-irritating — gentle on pregnancy-sensitive skin for all-day beach comfort
Lightweight texture — no heavy, waterlogged feeling during beach and swimming activities

Slim-Fit One-Piece Design

Slim-fit silhouette — flattering, elegant look that showcases your pregnancy figure
Versatile for beach vacations and swimming throughout all pregnancy stages
6 colors, S–XL — Navy Blue, Gray Green, Black, Burgundy, Brown, Peacock Blue

Size Guide

Available in S, M, L, XL. True to size. If between sizes or your bump is larger, size up.
View Full Size Guide →

Care Instructions

Hand wash cold or machine wash on gentle cycle
Do not bleach
Lay flat to dry in shade
Do not iron

FAQ

Is a one-piece swimsuit better than a bikini for maternity swimming?

A one-piece maternity swimsuit provides more comprehensive coverage and belly support compared to a bikini, making it a popular choice for expectant moms who prefer full coverage during swimming. The slim-fit design also provides a flattering, elegant look that showcases your pregnancy figure while keeping you comfortable and supported during beach and pool activities.

Is this swimsuit suitable for sensitive pregnancy skin?

Yes. The non-irritating, skin-friendly premium swim fabric is specifically designed to be gentle on pregnancy-sensitive skin. The smooth, breathable construction prevents irritation and chafing during extended beach and swimming activities, making this swimsuit comfortable for all-day wear throughout all pregnancy trimesters.

Does the swimsuit feel heavy after swimming?

No. The lightweight, quick-dry fabric is specifically designed to prevent the heavy, waterlogged feeling that some swimsuits have after swimming. The quick-dry construction also dries fast after leaving the water, keeping you comfortable and lightweight during all-day beach activities throughout your pregnancy vacation.

Shipping
Free standard shipping on orders over $30. Most orders process in 1-2 business days and arrive in 7-10 business days.

Returns
Return unworn, unwashed items with tags and original packaging within 30 days.

Fit Snapshot

Soft room & gentle support

Maternity and postpartum activewear fit notes for stretch, belly room, coverage, and daily comfort.

Fit & size

Use the Size Guide and product photos to check fit, coverage, stretch, and where the style sits on the body.

Fabric & coverage

Review the product description and photos for fabric composition, stretch, lining, padding, pockets, opacity, and care. For lighter colors, check photo coverage before choosing underwear color.

Before checkout

Confirm the Size Guide, shipping timing, and return policy. Flexvibe describes fit, support, and visual smoothing only; we do not promise weight loss, body changes, or medical results.

Size Guide Sports Bras Maternity