Every Type of Swimsuit, Explained

All the different swimsuit styles and when to wear them.

By

Published on July 15, 2024

Group of beautiful young women in posing together in swimwear against a red background — Photo:
Alvaro Gonzalez/Getty Images

Picking out a flattering swimsuit that works for the day ahead requires a bit of knowledge about different swimsuit styles. For example, you probably wouldn’t wear a bikini if you were boogie boarding in the salty Pacific—a rashguard is better for that—but this classic two piece is perfect for a lazy day of lounging poolside. We tapped experts for the full rundown on every type of swimsuit option so you have a better idea of all your choices.

1. One Piece

True to its name, a one-piece suit is a single garment that covers your body from chest to bum, including your torso. “It comes in all sorts of necklines and back styles, and can range from sporty to elegant with different cuts and designs,” says Madison Martina, founder and CEO of Kamari Swim.

Silhouettes can include a classic scoop neck, plunging V-neck, open back, asymmetrical cut, and beyond. It’s one of the most versatile swimsuit options thanks to its support and coverage, so definitely keep one or two at-the-ready.

Shop One Pieces

Miraclesuit Network Azura One Piece Swimsuit ($172, Miraclesuit)
Andie Swim The Malibu One Piece ($112, Andie Swim)

2. Bikini

Believe it or not, today’s classic one-piece swimsuit was considered quite daring when it was first introduced in the ‘20s due to its curve-hugging design. But the modern-day one-piece walked so the bikini could run.

“A bikini is a two-piece swimsuit with a top and bottom,” Martina explains. “The top can come in various styles such as triangle, bandeau, halter, or underwire, while the bottom styles include briefs, thongs, or high-waisted.” This style is ideal for low-key beach outings and pool parties.

Shop Bikinis

Wild Fable Underwire Floral Bikini Top ($22, Target) and Bottom ($18, Target)
Bravissimo Crete Bikini ($130 - $138, Bravissimo)

3. Tankini

Tankinis are similar to bikinis, only instead of the top being a bra-like silhouette it takes on a tank top shape, hence the name. “Silhouettes for this type of swimsuit include molded foam cups with underwire, underwire-only styles, and soft cup styles. Also, they can be drapey or cut closer to the body,” explains María Blanche, sales director at Magicsuit. “Tankinis work best for someone who wants bust support and comfort. They are less confining and may be easier to fit if you have a very long or very short torso.”

Shop Tankinis:

Magicsuit Carma Tankini Top ($136, Miraclesuit)
Lauren Ralph Lauren Women's High-Neck Halter Tankini ($115, Macy’s)

4. Monokini

A monokini is a hybrid between a one-piece and a bikini. “It typically has cut-out sections that expose more skin compared to a traditional one-piece,” Martina explains. “It provides a balance between coverage and exposure—perfect for those who want a trendy and eye-catching look!” Often, the cutouts are on the side or stomach, and sometimes they’re filled in with mesh paneling or left bare.

Shop Monokinis:

Kamari Berry Halter Neck One Piece ($120, Kamari)
Good American Always Fits Monokini ($119, Good American)

5. Rashguard

Rash guards are long-sleeve shirts that go over your swimsuit, or long-sleeve one-pieces. They were originally a go-to for surfers since to protect them from chaffing caused by their boards and provided more sun protection. This sporty swimsuit style has evolved over the years, though, notes Lyndsay Rinere, fashion stylist and owner of The Dressing Room in Madison, Connecticut.

“Now, they can be worn by anyone and are available within most swimwear lines,” she explains. “They are also widely available for children, which is a great option for parents because they don’t need to worry about as much sun exposure.” They’re also great for adults who want more sun protection.

Shop Rash Guards:

Lilly Pulitzer Randee Rashguard One-Piece Swimsuit ($178, Lilly Pulitzer)
Old Navy Long-Sleeve Half Zip Rashguard ($59.99, Old Navy)

6. Swim Dress

A swim dress is a modest one-piece bathing suit that features a skirted bottom. It can either fit loosely or have a more curve-hugging design. “The dress bottom hits mid-thigh and has a full control suit underneath,” Blanche explains. “Swim dresses work best for a customer who wants more hip coverage, dual use for activities like pickleball, or a more modest look.”

Shop Swim Dresses:

J.Crew Ruched V-Neck Swim Dress ($56+, J.Crew)
Modcloth The Babette Swim Dress ($119, Modcloth)

7. Swim Leggings

If a swim dress isn’t your speed but you still want a bit more coverage, consider swim leggings. “These are full-length or capri-length leggings made from quick-drying, stretchy swim fabric,” Martina explains. “This style is great for sun protection and for those who prefer more coverage, and are ideal for fitness-related swimming and aquatic exercise.” You can also pair them with rash guards or sports bras.

Shop Swim Leggings:

Land’s End Chlorine Resistant High Waisted Swim Leggings with UPF 50 ($67.95, Land’s End)
Coolibar Lily Side Pocket Swim Legging ($98, Coolibar)

7. Burkini

Burkinis are a play on the term “burqa” and are a modest type of swimsuit designed for Muslim people. It covers the whole body except for the face, hands, and feet, adhering to Islamic standards of modesty. Like other swimsuits, burkinis are made from lightweight, quick-drying materials ideal for hanging out in the water.