Mossimo One-Piece Swimsuit — Full Coverage & Modern Style
Our Mossimo bathing suit delivers the coverage and support you need for an active day at the water. This one-piece design features a scooped neckline that sits comfortably without riding up, while the medium-cut leg openings provide freedom of movement whether you're swimming laps or playing beach volleyball.
We use an 82/18 nylon-spandex blend that bounces back to its original shape after every wear. This fabric ratio gives you the stretch you need to move comfortably while maintaining the structure that prevents sagging or bagging over time.
Sizing & Fit Guide
This one-piece runs true to standard US women’s sizing from XS through XXL. The adjustable shoulder straps let you customize the torso length, which is especially helpful if you have a longer or shorter torso than average.
Finding Your Size
Measure around the fullest part of your bust and around your natural waist. If your measurements fall between two sizes, we recommend sizing up for a more relaxed fit or sizing down if you prefer compression. The elastic underbust band should sit flat against your rib cage without rolling or cutting in. If you typically wear a Mossimo bikini top in a certain size, you’ll likely need the same size in this one-piece since the bust construction is similar.
Care Instructions
Rinse your Mossimo bathing suit in cool fresh water immediately after each use to remove chlorine, salt, sunscreen, and body oils. Hand wash with a mild detergent when needed, or machine wash on the delicate cycle in a mesh garment bag.
Never wring or twist the fabric — gently press out excess water instead. Hang dry away from direct sunlight to prevent color fading and fabric breakdown. Avoid leaving your suit balled up in a bag or sitting in direct heat like a car trunk, as trapped moisture and high temperatures can damage the elastic fibers. With proper care, this suit will maintain its shape and color through an entire summer season and beyond.
What makes this one-piece stand out
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Questions About Your Mossimo Bathing Suit
This one-piece does not include removable padding or cups. The double-layer construction from the full interior lining provides coverage and shape without built-in padding. If you prefer additional bust support, you can wear a bikini-style insert or adhesive cups underneath.
Yes, the chlorine-resistant fabric also holds up well in saltwater. Just remember to rinse the suit thoroughly in fresh water after each use to remove salt, sand, and minerals. Saltwater can be more drying to fabric over time than chlorine, so proper rinsing and care are even more important for ocean swimming.
If your bust and waist measurements fall into different size categories, order based on your bust measurement since the torso area is less adjustable than the leg openings. The shoulder straps provide about two inches of adjustment range for torso length. If you’re between sizes and prefer a snugger fit for active swimming, size down. For lounging or a more relaxed fit, size up.
The suit provides light to medium support through the elastic underbust band and the structure of the nylon-spandex fabric, but it is not a compression style. The scoop neckline and lack of underwire mean the suit offers gentle shaping rather than flattening. If you need more bust support for high-impact activities, consider layering a sports bra underneath or choosing a style with built-in cups.
With proper care — rinsing after each use, hand or delicate machine washing, and hang drying away from direct heat — most customers report this suit lasting an entire summer season of regular use, which typically means 20 to 30 wears. Heavy daily use in chlorinated pools may shorten the lifespan to a few months, while occasional recreational wear can extend it to a full year or more.
The leg openings sit at a medium height — higher than a classic modest cut but not as high as a Brazilian or cheeky style. This balance provides a flattering leg line without excessive exposure. The cut hits at the natural crease where your thigh meets your hip, which visually lengthens the leg while maintaining comfortable coverage.
Swimwear can be exchanged for a different size as long as the hygiene liner is still attached and the suit has not been worn or washed. Once the liner is removed or the suit has been in water, it cannot be returned or exchanged for health and safety reasons. We recommend trying the suit on over your underwear at home before removing the liner to ensure you have the correct size.