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
RETURNS
SHIPPING
onewith you from the inside out ↔️
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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 |
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.
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.
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.
yes, all of our bikini tops + one pieces have removable bust cups that you can leave in, or take out!
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.
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.
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) 🫧
This is my second pair of bottoms from Onewith and I’m just as obsessed as the first time. I have a curvier bottom and have always sized up in swim bottoms because I hate the rolls they give me underneath. I’m 5,3 and 132lbs. These do not dig in at all. I could have probably sized down to a small, but these still fit great. I tell everyone about this brand. 10/10 perfect.
As someone with a shorter torso, narrow hips and a smaller butt, i absolutely love the way these look on me. the “dipped” shape in the back helps elongate the appearance of my torso posteriorly and makes it way more flattering compared to the typical bikini shape - i look less boxy and there’s no digging in! definitely need to follow the guidelines to stretch it first, but these fit amazing!
I ordered the cheeky bottom and the Thames scoop top. I got a notification that I was refunded for the top I assumed that they probably sold out in my size as the reason why. So I ordered another size in that top. But my original package just came and they threw in a different top FOR FREE. I COULDNT BELIEVE it. I wouldn’t have normally ordered that top style as I have a big chest on a small/medium size body and I’m self conscious about my chest. But I just tried it on and it’s SO CUTE and fits so unbelievably well. I couldn’t believe that they gave me something for free to try! That is unbelievable customer service. The suit in general is butter and fits so well I am so excited to wear this for my friends bachelorette in Mexico. I don’t usually write reviews, positive or negative and just a go with the flow kinda girly but wow i am so impressed by the business and the quality in general. Worth every penny and looks and feels amazing. Thank you so much for the kindness in a replacement of no charge. A crazy surprise that you don’t see these days from big or small companies. I 100%% recommend the suits and the company and will be ordering more!! Thank you thank you!! Pic included for proof that this is a real and honest review
Love the fit! They’re comfortable and really do fit like no show undies!! Can’t wait to rock them on the beach this summer! For reference I’m 5ft 4inch, 145lbs. I got a large.
Thank you so much for your review, Justina! We're so happy to hear you love your Merritt bottom, and that it fits comfortably, and just like your fave no-show undies! We're excited for you to rock your onewith all summer long!
