How to Choose Swimwear for Swimming vs Sunbathing

Quick answer

For swimming, prioritize a secure fit with adjustable ties or straps and consider chlorine-resistant fabrics if you swim in pools. For sunbathing, focus on minimal coverage and style, like a triangle bikini with tie sides that lets you adjust coverage as you tan. If you do both, choose a versatile set with convertible straps and moderate coverage.

Not all swimwear is built for the same job. A bikini that stays put during a dive may feel too restrictive when you're lounging on a towel, and a flirty triangle top that looks perfect for sunbathing might not offer enough support for laps. The key is matching the design to your primary activity.

This guide breaks down the differences between swimwear for swimming and swimwear for sunbathing, with practical tips on fit, fabric, and features. You'll learn how to spot the right details—like adjustable ties, lining, and strap design—so you can buy with confidence, whether you're hitting the pool or the beach.

Swimwear for Swimming: What to Look For

When you're swimming, movement is constant. You need a suit that stays in place, won't gap or shift, and holds up to repeated exposure to water and chlorine. Look for secure closures like tie backs and adjustable straps that you can tighten for a snug fit. Higher necklines and racerback styles offer more coverage and reduce drag. If you swim in pools, choose chlorine-resistant fabrics—often a blend of polyester and spandex—to prevent fading and stretching. Rinse your suit in fresh water after every swim to extend its life.

Coverage matters too. A bikini bottom with a bit more coverage, like a mid-rise or high-waist cut, stays put better than a string bikini during kicks and turns. For tops, a bandeau with detachable straps can be worn strapless for tanning but secured for swimming. One-piece suits are a classic choice for swimming because they eliminate gaps at the midsection and offer streamlined support. If you prefer a bikini, look for styles with wide side bands or adjustable ties that you can knot tightly.

• Adjustable ties and straps let you customize the fit for security.
• Chlorine-resistant fabrics last longer in pools.
• Moderate to full coverage reduces shifting during movement.
• Racerback or cross-back styles keep straps in place.

Swimwear for Sunbathing: What to Look For

Sunbathing is about relaxation and even tanning. You want minimal coverage, easy adjustability, and styles that won't leave harsh strap marks. Triangle tops with thin ties and sliding cups let you adjust coverage and avoid tan lines. Bottoms with tie sides, like the Lola Triangle Bikini Bottom, can be positioned low or high on the hips to control coverage and elongate the legs. Fabrics should feel soft against the skin and dry quickly so you're not sitting in damp material.

Style is a big part of sunbathing swimwear. Playful prints, ruffles, and textures add personality. But don't sacrifice all support—if you plan to swim occasionally, choose a top with removable straps or a bottom that ties securely. A bandeau top with detachable straps, like the Chelsea Bikini Top, gives you the best of both worlds: strapless for tanning, strapped for a dip. Just remember that minimal coverage means more sunscreen and careful positioning if you want to avoid burns.

• Triangle tops and tie-side bottoms offer adjustable coverage.
• Quick-drying fabrics keep you comfortable between swims.
• Detachable straps let you convert a sunbathing top for swimming.
• Prints and ruffles add style but check that ties are secure.

Fabric and Construction: The Details That Matter

Swimwear fabrics are typically a blend of nylon or polyester with spandex for stretch. For swimming, a higher spandex content (around 20%) gives better recovery and shape retention. Chlorine-resistant suits often use PBT or polyester blends that resist fading. For sunbathing, you might prefer softer nylon blends that feel silky against the skin. Lining is another factor: double-lined suits, like the Chelsea Bikini Bottom, provide opacity and a smooth feel, while fully lined tops add comfort.

Construction details like flatlock seams reduce chafing during swimming, while ruffles and lace overlays are decorative and better for lounging. Adjustable closures—ties, hooks, or sliders—are essential for a custom fit. If a product description doesn't mention chlorine resistance, assume it's not designed for frequent pool use. Always check the care label: hand washing in cold water and drying flat will keep any suit in better shape.

• Higher spandex content improves fit retention for swimming.
• Double lining prevents show-through when wet.
• Flatlock seams minimize irritation during movement.
• Hand wash and air dry to preserve stretch and color.

Fit Guidance: How to Get the Right Size

Swimwear should fit snugly but not dig in. When trying on a swimsuit, move around: raise your arms, squat, and twist. The suit should stay in place without riding up or gaping. For bikini tops, the band should be firm around your ribcage—if it rides up when you lift your arms, go down a band size or tighten the straps. Cups should fully contain your bust without spilling over. For bottoms, the leg openings shouldn't cut into your skin, and the back should cover comfortably.

If you're between sizes, consider the activity. For swimming, a slightly tighter fit is better because fabric relaxes in water. For sunbathing, you might prefer a looser, more relaxed fit for comfort. Adjustable styles are forgiving: tie-side bottoms and tie-back tops can be customized. Remember that swimwear fabrics can stretch over time, so if you're unsure, err on the side of a snugger fit. Always check the size chart and reviews for guidance.

• Test fit by moving: arms up, squat, twist.
• Band should stay put when you raise your arms.
• Bottoms shouldn't dig into hips or thighs.
• Adjustable ties accommodate size fluctuations.

Decision Rules: Swimming vs Sunbathing

• If you swim laps or do water aerobics: Choose a one-piece or a high-coverage bikini with secure ties and chlorine-resistant fabric. Look for racerback styles and wide straps. Prioritize security and durability over minimal coverage.
• If you mostly sunbathe and occasionally dip: Choose a triangle bikini or bandeau with adjustable ties and detachable straps. Minimal coverage and quick-drying fabric are key. Prioritize adjustability and style, but ensure ties are secure for occasional swims.
• If you do both equally: Choose a versatile set with convertible straps, moderate coverage, and a blend that balances stretch and chlorine resistance. Double-lined bottoms add opacity. Look for features that adapt: detachable straps, tie sides, and mid-rise cuts.

Product Examples from Mane Intimates

• Chelsea Bikini Bottom - Gingham: Designed to sit comfortably on the hips with a stretchy, flattering cut and just the right amount of coverage. Double lined for a smooth feel. The moderate coverage and double lining make this bottom a good choice for swimming, as it stays put and prevents show-through. The gingham print adds style for sunbathing.
• Chelsea Bikini Top - Bronze: Cut in a flattering bandeau style silhouette with a soft dusty blue ruffle detailing. Adjustable and detachable straps let you wear it strapless or with support. The detachable straps make this top versatile: wear strapless for sunbathing to avoid tan lines, then attach straps for swimming when you need extra security.
• Lola Triangle Bikini Bottom - Polka Dot: Cut with a minimal triangle shape and adjustable side ties, this piece can sit low or high on the hips and elongates the legs for a confident, barely there feel. Fully lined for comfort. The adjustable ties let you customize coverage for sunbathing, while the fully lined construction ensures comfort. It's ideal for tanning but may shift during vigorous swimming.
• Lola Triangle Bikini Top - Gingham: Designed with a clean triangle cut and adjustable ties, this piece offers a flattering, barely there feel that still holds beautifully. Adjustable straps and a tie back closure allow for a personalised fit. The adjustable ties and tie back provide a secure fit for light swimming, while the minimal coverage is perfect for sunbathing. The gingham print adds a playful touch.

Fit Guidance: Swimming vs Sunbathing

Best for

• Swimmers who need a secure, stay-put fit with adjustable straps and moderate coverage.
• Sunbathers who want minimal coverage and adjustable ties for even tanning.
• Active beachgoers who want a versatile suit that transitions from sand to surf.

Not for

• Competitive swimmers who need technical racing suits with compression.
• Those who prefer full-coverage modest swimwear for cultural or personal reasons.
• People who want a one-piece for sunbathing—bikinis offer more adjustability for tan lines.

Choosing swimwear for swimming versus sunbathing comes down to fit, fabric, and features. Prioritize security and durability for swimming, and adjustability and minimal coverage for sunbathing. With the right details—like adjustable ties, detachable straps, and double lining—you can find a suit that works for your favorite water activities. Shop Mane Intimates for stylish options that blend function and flair.