What Is a Bodysuit Used for in Activewear?

A bodysuit is a one-piece, close-fitting garment used where loose fabric gets in the way. You'll see it in wrestling, powerlifting, gymnastics, dance and time-trial cycling. It stays in place, gives officials a clear view of the body and cuts down on snagging. Not every bodysuit is made for training, though.

Here's the longer answer: where these suits are used, how they work, and how to tell a genuine training piece from a fashion one.

Where one-piece suits are used in sport

The same idea shows up across several sports. Take away the loose bits, and there's nothing to grab, flap or ride up.

Wrestling. The wrestling singlet is a one-piece, tight-fitting uniform, usually made from spandex or nylon. It fits close so an opponent can't grab it by accident. It also lets the referee see each wrestler's body clearly when awarding points or a pin. Some leagues now allow a two-piece option, which is a compression top with matching shorts, so check what yours requires.

Powerlifting. Competition powerlifting uses a singlet too. The International Powerlifting Federation (IPF) rulebook says the singlet must be one-piece and form fitting, and it has to come from an approved manufacturer. A t-shirt is worn underneath. Other federations have their own rules, so lifters should always check theirs. If you'd rather train in a top and shorts, our guide on whether tank tops are good for weightlifting covers that side.

Gymnastics and dance. A leotard is a snug one-piece that covers the torso and leaves the legs free. Add full-length legs and you have a unitard. Gymnasts, dancers and acrobats wear them to move freely without fabric shifting. A close fit also makes it easier for judges to see technique. The leotard is named after Jules Léotard, a 19th-century French acrobat who wore a tight one-piece garment for unrestricted movement.

Cycling. A skinsuit joins the jersey and shorts into one piece and is common in time trials. It hugs the body and removes loose areas that could catch the wind.

What a bodysuit actually does

Across these sports, the benefits are fairly simple.

• It stays put. One piece means no waistband to slip and no top to untuck.

• It gives a clean outline. Referees and judges can see body position clearly.

• It cuts loose fabric. That means less to grab, snag or catch the wind.

• It usually uses stretch fabric. Nylon and elastane or spandex blends are common.

Some people also buy a bodysuit for compression. The evidence on compression is mixed. A 2017 meta-analysis of 23 studies found small recovery benefits overall, strongest after resistance exercise. A 2022 review concluded that compression garments don't seem to help muscle strength recover. A snug fit also isn't the same as compression, so only expect compression if the maker says the garment offers it.

Training suit or competition suit?

These two jobs aren't the same. A competition suit has to follow your sport's rules, which can cover fit, colour, approved makers and what you wear underneath. That's why lifters in IPF events use approved singlets rather than any one-piece they like.

For training, the rules usually matter less. Some retailers note that training singlets can be any design, while meet singlets must follow the rules. Even so, it's smart to train in the same style you'll compete in, so the fit feels familiar on the day.

Not every bodysuit is activewear

This part matters. Our Bodysuits & One-Piece collection includes a range of styles, from athletic-inspired singlets to fashion, clubwear and costume designs. Some pieces may combine training-focused construction with a fetish-inspired or statement look; others may be designed primarily as lingerie or clubwear.

Activewear and statement styling can overlap. Mesh, lace, fishnet, tulle or a harness detail does not, by itself, establish whether a garment is suitable for exercise. Equally, a sporty appearance does not guarantee that a piece is designed for training.

When assessing a bodysuit, consider these points:

• Intended use: Does the product description identify gym use, a sport, everyday wear, lingerie or clubwear?
• Fabric and construction: Is the material suitable for the activity, with appropriate stretch and coverage?
• Fit and movement: Can you bend, squat, reach and move without pinching, slipping or restriction?
• Practical details: Do the straps, seams, neckline and leg openings stay comfortable during movement?
• Product guidance: Does the maker provide fabric details, sizing information and guidance about use?

Here are two sport-style pieces in the range, and what the makers actually say:

• JOR 2216 Fighter Bodysuit. Listed as 78% nylon and 22% elastane, with a deep scoop neckline and contrasting side details. The maker pitches it for the gym, for lounging at home or for making a statement.

• MetroMaleWear Olympian Singlet. Listed as a tricot nylon singlet in 80% nylon and 20% spandex. MetroMaleWear also makes posing and competition suits.

Neither is listed as meeting any federation's rules. If you compete, check your sport's rules before you buy.

How to choose one for training

Follow these steps and you'll avoid most problems.

1. Decide what it's for. Is it for competition, for training, or just a casual layer?

2. Check the rules if you compete. The IPF, for example, only allows singlets from approved manufacturers.

3. Check the fabric. Look for a nylon, elastane or spandex blend with good stretch. A "4-way stretch" label is a helpful sign. If you're unsure what a wicking claim really means, our guide to what moisture-wicking actually means explains it.

4. Check the fit. Wrestling singlet makers often size by weight. Too loose gives an opponent something to grab, while too tight can limit your movement and breathing. Cleveland Clinic also notes that tight, restrictive clothing can cause chafing, so snug shouldn't mean squeezing.

5. Check the straps, neckline and leg cut. In lifting, federations such as the IPF expect the straps to stay over your shoulders for every lift.

6. Test it first. Do a few squats, hip hinges and arm swings at home before a big session.

7. Follow the care label. Stretch fabrics last longer when you wash them as directed.

Common mistakes to avoid

• Judging training suitability by appearance alone. Check the individual product's intended use and construction. Mesh, lace or fishnet alone does not establish whether a bodysuit is suitable for training.
• Assuming snug means compression. Only the product details can tell you.
• Leaving the rules until meet day. Check your federation's requirements early.
• Guessing your size. Use the size guide, and remember that sizing can vary by brand.
• Skipping a test run. A suit that pinches in one position will annoy you under load.

Where a bodysuit fits in your kit

A bodysuit is a specialist piece, not an everyday one. For lifting, wrestling, dance or time-trial cycling, it's often the main garment. In IPF lifting, for example, a t-shirt goes under the singlet. For general training, most people do fine with a simple top and shorts, and a bodysuit is an extra for the sports that call for it.

A good approach is to sort out your basics first, then add a one-piece for the sport or session where it helps. Our guide to building a men's activewear capsule wardrobe walks through those first pieces, so you can see where a one-piece suit might slot in.

Quick questions

Is a bodysuit the same as a singlet?

Not exactly. Bodysuit is a broad term. A singlet is a sleeveless one-piece sport uniform that ends above the knee, a leotard leaves the legs free, and a unitard has long legs.

Are mesh or lace bodysuits okay for the gym?

It depends on the individual garment, not the presence of mesh or lace alone. Check the maker's intended use, fabric, construction, coverage and fit. Treat a piece as training gear only when the product guidance supports that use and it suits your activity.

Do compression bodysuits speed up recovery?

The evidence is mixed. Some research shows small benefits, while other reviews found no help with strength recovery. Choose for fit and comfort first.

Do I need a bodysuit to train?

No. Most training sessions don't need one. It matters mainly in sports where the rules or the movement call for a one-piece suit.

Ready to look?

Start with your sport and your fit, then read each product page closely.

Shop Bodywear & Lounge: browse our Bodysuits & One-Piece collection. Stock and sizes change, so check each product page for fabric, fit and availability. Want the bigger picture? Our guide to men's activewear basics explained shows what each piece is for.