Maternity Three-Piece Swimsuit – Backless

Flexvibe 4-way stretch maternity activewear in Core Color, soft support main product image

Flexvibe Maternity Three-Piece Swimsuit | Backless, Flexible Tie, Quick-Dry, 4 Colors, S–XL

$45.80

$45.80 $55.00

Buy 2 get 10% off - code FV10

ColorWhite

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 Three-Piece Swimsuit | Backless, Flexible Tie, Quick-Dry, 4 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.

Free Shipping over $30

30-Day Returns

The Flexvibe Maternity Three-Piece Swimsuit is a mix-and-match three-piece maternity swimsuit with a sexy backless cut and multi-position flexible tie, made from high-stretch, lightweight, breathable, quick-drying, colorfast premium swim fabric for beach vacations and swimming during pregnancy. The three-piece design allows versatile mix-and-match styling, while the flexible tie can be worn in multiple positions to accommodate your growing bump. Available in 4 colors, S–XL.

Quick Fit Snapshot

Best for beach vacations and swimming during pregnancy
Fabric high-stretch, lightweight, quick-dry, colorfast premium swim fabric
Design backless + multi-position flexible tie — versatile styling
Set 3-piece mix-and-match
Sizes S, M, L, XL · White, Black, Orange, Blue

MaternityBeach3-Piece SetBacklessFlexible TieQuick-Dry

✓ 3-piece mix-and-match✓ Backless sexy cut✓ Multi-position flexible tie✓ Quick-dry colorfast

Product Features

Fabric & Performance

High-stretch, lightweight, breathable, quick-drying premium swim fabric
Colorfast — maintains vibrant color through repeated beach and pool use
Skin-friendly — comfortable for all-day beach wear during pregnancy

3-Piece Backless Design

3-piece mix-and-match set — versatile styling options for beach vacations
Sexy backless cut — elegant, flattering look that showcases your pregnancy figure
Multi-position flexible tie — wear in multiple positions to accommodate your growing bump
4 colors, S–XL — White, Black, Orange, 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

How does the flexible tie accommodate a growing bump?

The multi-position flexible tie can be worn in different positions and adjusted to different tightness levels to accommodate your growing bump throughout pregnancy. You can loosen the tie as your bump grows and reposition it to provide comfortable coverage and support at different pregnancy stages.

Is a backless maternity swimsuit comfortable during pregnancy?

Yes. The backless design provides ventilation and a flattering, elegant look during pregnancy. The high-stretch, lightweight fabric accommodates your growing bump from the front while the open back allows airflow to keep you cool and comfortable during beach and swimming activities.

Can the three pieces be worn separately?

Yes. The three-piece mix-and-match design allows you to wear the pieces separately or together for versatile beach styling. You can mix and match the pieces with other swimwear or cover-ups for different beach looks 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