How to Choose the Right Swimsuit for Swimming Laps

Quick Answer

For lap swimming, choose a swimsuit made from chlorine-resistant fabric like nylon and elastane, with a snug fit and secure straps. Look for styles that minimize drag and stay in place during repetitive movements, such as deep bikini briefs or high-waist bottoms paired with a supportive top.

When you swim laps regularly, your swimsuit takes a beating. Chlorine, sun, and constant movement can stretch fabric and fade colors. The right suit should feel like a second skin—secure enough to focus on your stroke, not on adjusting straps or pulling down bottoms.

This guide breaks down what to look for in a swimsuit for lap swimming, from fabric and fit to style features that help you move efficiently. We'll also point out trade-offs so you can decide what matters most for your pool routine.

What Makes a Swimsuit Good for Lap Swimming?

Lap swimming demands durability. Chlorine is harsh on elastic, so look for fabrics like nylon and elastane blends that resist breakdown. The catalog facts for many Miss Mandalay styles list high nylon content and added elastane for stretch—both good signs for pool use. For example, the Dash Deep Bikini Brief contains 96% nylon and 4% elastane, which offers a balance of strength and flexibility.

Fit is equally important. A suit that's too loose can cause drag and chafing; too tight can restrict movement. You want a snug but comfortable fit that stays put when you push off the wall. Consider styles with adjustable features, like halter ties, to customize the fit.

• Check the fabric blend: high nylon content typically means better chlorine resistance.
• Avoid cotton-lined suits; they absorb water and become heavy.
• Look for fully lined styles to prevent transparency when wet.

Key Features to Prioritize

Support is a top priority, especially for those with a fuller bust. An underwired halter top, like the Fuller Bust Boudoir Beach Teal Underwired Halter Bikini Top, provides structure and lift, reducing bounce during laps. The halter tie lets you adjust tension, which helps keep everything secure.

For the bottom, coverage and security matter. Deep bikini briefs offer good coverage and stay in place better than skimpy cuts. If you prefer more waist coverage, high-waist styles like the Boudoir Beach Wine High Waist Bikini Brief provide a belted detail and maximum coverage, which can also offer a flattering silhouette.

• Opt for underwired tops if you need extra support for high-impact movements.
• Choose bottoms with good coverage to avoid constant adjusting.
• Consider high-waist options if you want extra tummy control.

Style Trade-Offs for Lap Swimming

While bikinis are popular for lounging, they may not be ideal for serious lap swimming. Separate pieces can shift, and ties can come undone. However, if you prefer bikinis, look for deep briefs and secure tops with sturdy straps. The Vegas Animal Print Deep Bikini Brief is fully lined and offers good coverage, making it a more practical choice for pool workouts.

One-piece suits are often recommended for competitive swimming because they reduce drag. But for recreational lap swimming, a well-fitted bikini can work if you prioritize security. The trade-off is that you might spend more time adjusting than swimming. If you're training for speed, a one-piece or tankini might be better.

• Bikinis offer style and ease, but may require more adjustment.
• One-pieces provide streamlined performance but less flexibility in sizing.
• Tankinis combine coverage with the convenience of two pieces.

Decision Rules for Choosing Your Lap Swimming Swimsuit

• Fabric First: Check the fabric content. Aim for at least 80% nylon or polyester, with elastane for stretch. Avoid cotton. If the suit is mostly cotton, skip it for lap swimming.
• Fit for Movement: Choose a snug fit that doesn't ride up or sag. Test by stretching and bending. You shouldn't have to adjust constantly during a lap.
• Support Needs: If you have a fuller bust, opt for underwired or halter tops. For smaller busts, a simple triangle may suffice. Support should match your activity level.
• Coverage Comfort: Decide on bottom coverage based on your comfort. Deep briefs or high-waist styles offer more security. When in doubt, choose more coverage.

Product Facts to Consider

• Fuller Bust Boudoir Beach Teal Underwired Halter Bikini Top, D-GG Cup Sizes: Plunge halter bikini top with underwires for fuller bust support; available in sizes D-H; 81% nylon, 19% elastane. The underwire and halter design provide the support needed for lap swimming, reducing bounce and keeping everything secure.
• Dash Deep Bikini Brief: Deep bikini brief in multi coloured leopard print with 3 straps to side; fully lined; 96% nylon, 4% elastane. High nylon content offers durability in chlorine, while the deep cut and side straps ensure good coverage and a secure fit.
• Boudoir Beach Wine High Waist Bikini Brief: High waist version of deep bikini brief with belted detail; fully lined with maximum coverage; sizes XS to 3XL. Maximum coverage and high waist provide extra security and comfort, making it a practical bottom for lap swimming.

Fit Guidance

Best for lap swimming

• Swimmers who prioritize chlorine resistance and durability
• Those who want a secure fit with minimal adjustment during laps

Not ideal for

• Competitive swimmers who need a one-piece for speed
• Anyone who prefers minimal tan lines and more skin exposure

Choosing the right swimsuit for lap swimming comes down to fabric, fit, and support. Prioritize chlorine-resistant materials like high-nylon blends, ensure a snug but comfortable fit, and pick styles that offer the coverage and support you need. Whether you opt for a supportive bikini top and deep briefs or a high-waist bottom, the key is to feel confident and secure in the water. With these guidelines, you'll be ready to dive into your next workout.