How to choose a plus-size swimsuit (and what to avoid)

Many swimsuit brands treat plus-size bodies as an afterthought, pushing ill-fitting cuts and dull styles that leave you tugging at fabric or hiding under a beach cover-up. A beach day should spark joy, not swimwear anxiety.

Discover plus-size swimsuits that celebrate every curve with smart cuts, supportive fabric, and stunning styles that flatter your natural shape. From high-waisted bottoms to wrap-style tops, we’ll teach you how to shop for plus-size swimwear that fits right and looks great.

Quick links:

Plus size swimwear challenges

Support solutions for plus-size swimwear

Coverage to make you feel confident

Must-have comfort features

Plus-size swim accessories

Shopping tips

We'll help you find plus-size swimsuits that highlight your curves, fit just right, and match your style.

Plus-size swimsuit challenges

Many plus-size swimmers face frustrating experiences with poorly constructed or uncomfortable swimwear. Before we explore the best styles and solutions, let's break down the problems caused by many plus-size swimsuits:

• Back and shoulder strain from insufficient support structures

• Painful chafing between thighs and under arms from rough seams and tight elastic

• Constant readjustment as suits ride up during swimming or walking

• Compressed or spilling bust from poor cup sizing and support

• Raw skin from straps digging into shoulders

• Thin, cheap fabrics turn transparent when wet

• Elastics stretch after a few uses, creating saggy areas

• UV rays penetrate stretched or worn fabric

• Seams split during normal movement

• Size inconsistency across different brands

• Unflattering cuts that create bulging around arms and thighs

• Bra bands that roll up during activity

• High-cut legs that provide inadequate coverage

• Suits advertised as plus-size but cut for smaller frames

If you’ve ever dealt with these problems, you’re not alone. The good news? You’re about to get a master class in how to toss your problems in the hamper and put on a new approach to swimwear.

Support solutions for plus-size swimwear

 

 

Plus-size swimmers need proper support structures that distribute weight evenly and prevent strain. A well-supported swimsuit reduces back pain, prevents shoulder fatigue, and adds hours of comfort to your beach day.

Built-in support features

Looking great in your swimsuit starts with the right support. Shop for swimwear with these supportive features for a secure, comfortable fit:

• A power mesh lining compresses and supports your curves while letting you move freely.

• A dual-layer design between the bust and torso smooths your silhouette without feeling restrictive.

• A full-coverage shelf bra with power mesh lifts and supports from underneath.

• Molded foam cups create clean lines and natural shaping.

• Wide, soft elastic bands distribute pressure evenly to prevent rib cage discomfort.

• Secure side boning and grippy silicone strips keep everything in place while you swim.

Underwire vs. wireless support

A structured underwire provides maximum lift and separation for larger busts. Steel or flexible plastic wires sit beneath the bust to create a defined shape. Your swimsuit should never poke or pinch as a properly fitted underwire lies flat against your ribcage.

Wireless suits use inner shelf bras, molded cups, and power mesh panels to support without metal components. This style is for swimmers who find underwires uncomfortable or want a more natural shape. The best wireless designs have wide bands under the bust and reinforced side panels.

Strap design for all-day comfort

Straps bear the weight of your bust. A swimsuit that fits right in the shop might become uncomfortable after an hour or so. When choosing swimsuits, look for these features to avoid discomfort:

• Wide, padded straps that distribute pressure without digging into your skin

• Adjustable straps to maintain the right fit even after your suit stretches from age

• Convertible options that let you switch between styles or activities

Beyond features, you can also shop these strap styles known for support and comfort:

• Cross-back

• U-back

• Adjustable halter tops

Avoid thin straps or cheap elastics. They will stretch out after a few wears.

Best tops for bust support

Your swim top needs to comfortably hold everything in place. A poor design strains your neck and shoulders, while the right style keeps you comfortable all day. These tops give the support you need:

• High-neck halter tops spread weight across your shoulders with wide straps for reduced neck strain and all-day comfort.

• Cross-back styles secure your bust like a sports bra for stability during water activities.

• Full-coverage scoop necks match your natural shape with princess seams for support without compression.

• Bustier tops use side and back boning to add structure and lift while they maintain a classic look.

• Tank tops pair adjustable straps with built-in bras and removable cups, so you control your support level.

• Bandeau tops stay in place with silicone grip strips and convert from strapless to traditional with optional straps.

Shop our halter tops.

Coverage that makes you feel confident

 

 

For a good, enjoyable beach day, you need swimwear that fits, flatters, and never betrays your trust with see-through fabric or unexpected slips. The right coverage puts your mind at ease and lets your confidence shine. Let’s look at swimwear styles that put you in control of coverage.

High-waisted bottoms

A high waistband sits at your natural waist to smooth your stomach and keep your suit anchored all day. The extra-wide band won't roll down or dig into your skin, thanks to sturdy reinforced stitching. 

High-waisted bottoms add retro style to any body shape. The high rise creates a sleek silhouette with full midsection coverage for beach walks, pool days, and active family fun.

Our high-waist bikini bottoms have a wide, double-layered waistband with a power mesh support to stop rolling. Soft, flat seams prevent chafing while quality stitching holds the shape after many washes.

One-piece swimwear

A well-designed one-piece suit shapes and flatters your figure from top to bottom. Seams down the front follow your body's natural lines to create an hourglass effect. The connected design creates a smooth line from bust to hip, with more coverage than a two-piece suit offers.

Our one-piece suits have a power mesh lining that targets trouble spots with gentle compression. For upper body support, we add built-in shelf bras with molded cups. The wide straps balance weight distribution to prevent shoulder strain, and every seam lies flat to eliminate chafing or digging.

Tankinis

Plus-size tankinis combine the best aspects of one-pieces and bikinis. The top falls past your waist to prevent ride-up, while separate pieces let you move freely. 

Our tankinis come in different top and bottom sizes to fit your proportions. The empire waist top hits above your natural waistline for a defined shape. Pick from fitted styles that hug your curves or relaxed cuts that drape loosely.

Strategic design features

Your swimsuit's design elements do more than look pretty, each detail has a purpose. Shop for these features to add flair to your style without sacrificing coverage and support:

• Dark side panels to slim your middle section

• Vertical seams to make your frame appear taller

• Wrap-style swim tops to flatter your waist

• Asymmetrical necklines to balance a full bust

• Mesh inserts to add style without revealing too much

Must-have comfort features

Your plus-size swimsuit must withstand sun, salt, chlorine, and motion without causing discomfort or prematurely wearing out. Quality materials and construction methods protect your skin and extend your suit's life.

Sun-protective fabrics

Your swimsuit is your first defense against sun damage. The best plus-size suits use tight-knit nylon and polyester blends that block 98% of UV rays (like we do). These fabrics maintain their protective power through countless swims, even when wet or stretched across curves. Dark colors and dense weaves add extra UV protection to vulnerable areas.

Chafe-free construction

Proper seam design prevents chafing in swimwear. The best suits use flat-lock seams to eliminate bulk and friction. Strategic seam placement avoids sensitive areas, while soft fabric guards high-movement zones, like thighs and underarms. Look for covered elastic bands that won't dig into your skin.

Our suits protect against irritation at every contact point. Each seam lies flat against your skin, and covered elastic edges won't pinch or bind. Extra fabric reinforcement in the thighs and underarms keeps you comfortable through every splash and swim.

Durable fabric

The best swimsuits use nylon-spandex blends with chlorine resistance. This high-quality fabric keeps its shape and color after repeated pool use. Thick, tightly woven material resists snags and stands up to regular wear.

Our suits feature premium nylon-spandex fabric that won't fade or stretch out. Double-stitched seams prevent splits and tears, while sturdy elastic bands stay tight and snug. The dense weave blocks snag to keep your suit looking new through countless swims.

Read our swimsuit fabric guide to learn more.

How to choose the right style for your body type

 

 

Every body tells a unique story. The right swimsuit celebrates your body shape with cuts and details that spotlight your best features.

Apple shape

An apple shape means most weight sits in your middle. You have a full bust, slim arms and legs, and less definition at your waist. Here are some ideas you can try:

• A black swim dress with a V-neck and ruched middle

• High-waisted bikini bottoms paired with a patterned halter top

• Navy one-piece swimsuit with tummy control and side ruching

• Empire waist tankini in a solid color with printed trim

• Full-coverage options with a blouson-style printed top

• One-piece with a deep V in burgundy or black

• Swim dress with built-in shorts for comfort

Pear shape

A pear shape means your hips and thighs carry more curves than your top half. Your shoulders and bust look smaller than your bottom half, with a defined waist in between.

Try these combinations for your plus-size pear shape:

• White ruffled bikini top with navy bottom

• Floral print tankini top with a solid black swim skirt

• Red halter top with dark high-waisted bottom

• Coral one-piece with high-cut legs and ruching

• Polka dot top with black swim shorts

• Bright printed top with navy skirted bottom

• Ruffled bandeau top with dark bottom coverage

Hourglass shape

An hourglass shape means your bust and hips are about the same size, with a clearly smaller waist between them. Your curves create natural definition.

Try these swimwear ideas:

• A red halter one-piece with waist definition

• Polka dot high-waisted bikini with underwire top

• Purple wrap-style one-piece with ruched sides

• Retro-style two-piece in navy with white trim

• Black one-piece with cut-outs at the waist

• Striped bandeau top with matching high-waist bottom

• Deep blue ruched one-piece with sweetheart neckline

Rectangle shape

A rectangle shape means your shoulders, waist, and hips measure close to the same width. Your athletic build provides a perfect canvas for creating curves where you want them.

Here are some cool ideas for plus-size rectangle-shaped bodies:

• Pink ruffled top with white boy shorts

• Color block one-piece with light top, dark bottom

• Striped bikini top with belted high-waist bottom

• Floral print tankini with gathering at the waist

• White one-piece with side cut-outs and ruching

• Bandeau top with ruffles and matching bottom

• Printed monokini with waist detail

Essential plus-size swim accessories

Once you’ve got your plus-size swimwear, it’s time to accessorize. Beach accessories add protection, style, and function to your ensemble.

These swim accessories will make you feel even more sunny in your swimsuit:

• Wide-brim sun hat in black or neutral tones

• Full-length maxi dress in breathable fabric

• Kimono wrap in prints that match your suit

• Button-front shirt dress past your knees

• Sarong tied at the waist or chest

• Extra-large beach towel for full coverage

Plus-size shopping tips

Before you run to the shops, take accurate measurements of yourself and understand how swimsuit sizing works.

How to measure yourself

Stand in front of a mirror in your underwear with a soft measuring tape. Your bust measurement goes around the fullest part of your chest. 

Find your natural waistline by bending to the side; measure where your body creases. For hips, circle the fullest part of your bottom. Write down these numbers to compare with the size chart.

Understand size charts

In a size chart, you will match your body measurements to the right swimsuit size. Each brand lists specific numbers for bust, waist, and hips in their charts, so you should always check their numbers before you make an order. Take your measurements with a soft tape measure before you shop.

Our size chart breaks down measurements for sizes 14–24. Each size option lists three numbers: bust, waist, and hips. 

For example, a size 3X fits a 50–52 inch bust, 42–44 inch waist, and 52–54 inch hips. The ranges give you flexibility since swimsuit fabric stretches to hug your curves.

How to pick quality

Run your hands along the swimsuit seams; they should feel smooth and sturdy. Gently pull on the stitches to check for strength. The fabric needs enough weight to smooth your curves without feeling stiff. 

Straps should have double-stitching where they meet the suit and elastic bands must spring back instantly when stretched. Choose high-quality materials as they will last longer.

Sizing decisions

Pick your normal size if the measurements match the chart exactly. Go up one size for more coverage under arms and between thighs. 

If you’re between sizes, try before you buy if possible. Size up if you have a fuller bust, and size down if you want more compression. Most swimsuit fabrics feel tighter when wet, so look for a fit that lightly hugs your body when dry.

Plus-size bathing suits FAQ

What swimsuit is best for a big tummy?

High-waisted bottoms paired with a tankini top or a one-piece with ruching are perfect choices for a big belly. These styles give extra coverage and support to the midsection. Dark colors and vertical stripes can also create a slimming effect.

How do I hide my belly in a plus-size swimsuit?

You can hide your belly in many ways. A ruched black one-piece smooths your middle. High-waisted bikinis with support panels keep everything secure. For total ease, pick a plus-size swim dress that flows past your hips.

Where can I find modest swimwear for plus size?

SwimZip offers plus-size modest swimwear where you can find a variety of styles to meet your personal preferences and your coverage desire. Choose between modest swim dresses, high-waisted bikini bottoms, tankini tops, and many other gorgeous options.

Can I wear a cover-up dress for beach volleyball?

A cover-up dress might restrict movement during beach volleyball. Choose swim shorts with a supportive top or a one-piece with good bust support for active sports. The fabric stays in place through dives and jumps.

What suits work best for swimming laps?

Athletic one-pieces with wide straps give you freedom to move. Pick a suit with chlorine-resistant fabric and strong seams. Race-back styles keep straps secure through every stroke, and higher necklines prevent spillover.

Do hip minimizers work in swimwear?

Hip minimizers use compression panels to reshape your silhouette. In swimwear, these panels often appear in swim shorts and skirted bottoms. While hip minimizers can smooth your curves, they often restrict movement and create uncomfortable pressure points in the water.

What styles support larger cup sizes?

Underwire tops sized by bra measurements support DD+ cups. Look for wide straps, side boning, and high necklines. Full-coverage backs with adjustable clasps distribute weight better than thin straps or ties.

How do I find cute plus-size suits for smaller busts?

For smaller busts, choose ruffled tops to add volume to your bust. Padded cups create shapes without looking fake, sweetheart necklines flatter smaller chests, and bright patterns bring attention up top.

How do I care for my plus-size swimwear to make it last longer?

Hand wash your suit in cold water with a gentle detergent after each use. Avoid wringing or twisting the fabric. Lay flat to dry away from direct sunlight to preserve the elasticity and color. This care routine maintains the suit's shape and extends its life, especially for suits with underwire or structured support elements.

Are there vintage swimsuits available in plus sizes?

Vintage-style swimwear is popular in extended sizes. Look for suits with classic designs, like polka dots, sweetheart necklines, and fit-and-flare cuts, that offer timeless elegance. Ruched tops and high-waisted bottoms are a classic combination. These styles often feature better coverage while maintaining a charming retro aesthetic.

What's the best plus-size swimwear for competitive swimming?

For competitive swimming or active water sports, look for suits made with a blend of nylon and material polyester; these materials are durable and chlorine resistant. Choose suits with a brief-cut design and race-back style straps for unrestricted movement. Make sure the suit offers a durable, confidence-boosting fit that stays in place during intense activity.

Can I find mix-and-match options for plus-size swimwear?

Many brands let you enjoy the benefit of mix and match. They offer collections where you can select individual pieces in individual sizes. This allows you to create the perfect suit combination by choosing tops and bottoms that best fit your proportions while exploring endless styling possibilities with different colors and patterns.

What should I look for when shopping for figure-flattering silhouettes in plus-size swimwear?

Focus on suits that create a beautiful silhouette through strategic design elements. Look for pieces with color-blocking that emphasize your best features, high-quality materials that provide proper support, and cuts that complement your natural shape. Many suits offer a tasteful blend of elegance and functionality to help you feel confident at the beach.

Further reading

Swimwear fabrics guide

Guide to finding the right bikinis

Guide to mixing and matching swimwear the right way

Sun-protective hats guide

How to stay modest at the beach