👻 Mystery Bundle | ⏰ LIMITED TIME ONLY | FINAL SALE
size & fit info
when you get you onewith
If you’re new to onewith, you might be wondering how it’ll feel once you slip it on. (spoiler alert: it’s amazing) but just in case you need a little extra guidance, we’ve created a handy fit guide to make sure your first try-on is perfection. view guide here
shipping & returns
RETURNS
- 1 free exchange for eligible US orders 🫶
- 14-day returns available for a fee for eligible US orders 📦
- items purchased at a discount of 30% or more are eligible for store credit only.
- items marked final sale are always, you guessed it, final sale!
- international orders are always final sale. see our full returns policy here.
SHIPPING
- free standard shipping on US orders over $85 😍
- priority + express shipping also available! 💨
- international shipping available, rates and duties calculated at checkout ✈️
- Shipping Protection, offered at checkout, is HIGHLY recommended! It covers lost, damaged, stolen, and stuck-in-transit packages 👍
product details
- designed in USA, made in China
- patent-pending
- LATEX INFO: we cannot guarantee that the inner grip strip of our suits is entirely free of latex. If you have a latex sensitivity or allergy, we recommend exercising the same caution you would typically use when assessing whether to wear a product that may contain latex.
- 80% nylon, 20% elastane
- hand wash only, lay flat to dry
swimsuit care
- Hand wash in cold water as soon as you can after use (rinsing in the shower is fine!)
- DO NOT machine wash.
- Lay flat to dry, do not hang.
- Do not dry clean, iron, or machine dry (even on a delicate cycle...) as this can, and most likely will, damage your onewith.
- Hot tubs and chlorinated pools with harsh chemicals can impact the quality and longevity of any swimwear, so it’s best to avoid them if you want to keep your swim in tip-top shape.
- If you wear your onewith under normal clothes, keep in mind that friction can create pilling/snagging. We prefer to wear our onewith under beach cover-ups/sarongs, which are created to be worn with swim.
- Sunless tanners, suntan lotions, oils, and harsh chemicals can ruin your onewith - ensure to not get these products in contact with any swim/garments!
onewith you from the inside out ↔️
our swim has a soft inner grip strip to keep your suit secure...without tight seams.
why choose onewith?
✨onewith ✨ vs. other swimwear
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other swim brands | |
|---|---|---|
| edgeless (no digging!) | ||
| no squeezing (elastic-free!) | ||
| no hidden seams inside | ||
| raw-cut (lays-flat on the body!) | ||
| inner grip inside to keep secure | ||
| made with 2 layers of fabric |
☝️ frequently asked questions
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please take our size quiz! it's the pink button that says 'CLICK HERE to find your size.' that is on every single product page on our site.
you only need to take it once, and your best size will automatically display for each product on our site, depending on how that product runs.
if you still want help in finding your size, reference our size guide here.
additionally, chat us on-site (quickest!) or DM us on IG and we can help you out.
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We offer 1 free exchange on eligible US orders so that you can find your best onewith size.
Returns are available for a $12.50 fee per order (additional fee will apply if you're returning more than 3 items).
US orders purchased at a discount of 30% or more are eligible for return for store credit ONLY. no refunds or exchanges.
International orders are ALWAYS final sale.
You may return/exchange your eligible order within 14 days, the 14-day window begins the day of carrier-confirmed delivery.
Read more about the onewith Return Policy here.
⚠️ NOTE: ITEMS MARKED FINAL SALE + MYSTERY BUNDLES ARE ABSOLUTELY, POSITIVELY FINAL SALE. No returns, no exchanges, no exceptions.
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onewith = 2 layers of normal swimwear fabric, just like any other swimwear. people tend to think our swim is either 1 layer of fabric, and/or super thin, like no-show undies. that is not true! again, our swim has 2 layers of fabric. It's just bonded together, not sewn with tight seams, which gives it a sleeker appearance that people may read as "thin." While we can't guarantee our suits are frontal-wedgie-free, so-to-speak as every person's anatomy is different, we can say that there is no reason why our suits would cause 🐪toe more than any other swimwear.
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yes, all of our bikini tops + one pieces have removable bust cups that you can leave in, or take out!
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we get it, the itch to get your swim that doesn't dig in ASAP is real! luckily, we do offer an Express shipping option if you do need it ASAP. otherwise, we offer free standard shipping on US orders over $85. all orders with standard shipping ship from our Connecticut, USA warehouse within 2-5 business days of receiving your order.
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ALL onewith suits feature our inner grip strip, which keeps the suits secure without the use of tight seams or elastic that digs. the inner grip strip is super soft and flexible.
🥴 traditional swimwear vs. onewith swim✨
important info for when you get your onewith ‼️
this is swimwear unlike anything else on the market, so with that, it has some special instructions to truly get a fit that's onewith your body ✨ 'warming up your onewith’ (aka giving the garment a stretch) is MISSION-CRITICAL to the fits-like-undies vibe. your swim actually SHOULD dig in a bit to start if it’s your proper size. then, with a stretch at the openings, it should fit and feel smooth, like a second skin (and/or your fave seamless undies) 🫧
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proper swim size after stretching
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proper swim size after stretching
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swim that is too small after stretching
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swim that is simply too large in general
shop all swim that fits like undies 🌊
- JjessicaVerified BuyerReviewing👻 Mystery Bundle | ⏰ LIMITED TIME ONLY | FINAL SALEI recommend this productRated 5 out of 5 stars4 weeks agoin love
I had such a hard time this past summer finding a bikini i look and felt good in that was also cute/stylish but also family friendly. THIS IS IT!!! i had to immediately buy another mystery bundle because it was too good of a deal to pass up on even if i get the same items i like to live in my suits in the summer and am so excited to be able to use these. The stretching is a key part in making it perfect for you which i love since every body is so different! ❤️
Oonewith13 seconds agoHey Jessica, thank you so much for your review! So glad to hear you were able to secure a mystery bundle! Even more excited to hear you love the suit you received :) You're absolutely right about stretching - it's essential to the fit of our swim. Enjoy your onewith!