onewith swim Reviews | Read Customer Reviews of onewithswim.com

onewith swimReviews of onewithswim.com

3.6103 reviews
Clothing & Underwear
Darien

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onewith swim

About onewith swim

onewith swim onewith is a women’s swimwear brand reinventing the way swimsuits fit, feel, and function. Founded in Connecticut, we appeared on Shark Tank and got a deal in 2025. onewith created swim that fits like undies: swimwear designed to feel as comfortable, flexible, and dig-free as your favorite seamless underwear, while still being intentionally made for the water. Unlike traditional swimwear that often relies on tight elastic seams, squeezing waistbands, and silhouettes that cut into the body, onewith uses a patented construction with bonded raw-cut edges, double-lined swim performance fabric, and soft inner grip technology. The result is swimwear that moves with your body, stays secure in the water, and helps eliminate the pinching, digging, and discomfort that many people experience with standard swimsuits. Our collection includes bikini bottoms, bikini tops, one-piece swimsuits, cheeky swimwear, thong swimwear, high-waisted swim bottoms, and mix-and-match swim separates. Every onewith swimsuit is designed to be swimmable, secure, flattering, and easy to wear, whether you are at the beach, by the pool, on vacation, or spending the day in and out of the water. For anyone searching for comfortable swimwear, better-than-seamless swimwear, dig-free swimsuits, no-pinch bikini bottoms, swimwear that fits like underwear, no-show bikini bottoms, or bikinis that do not squeeze, onewith was built to be the solution.

onewith swim (onewithswim.com) has 103 customer reviews on Five Star Index, with an average rating of 3.6 out of 5.

Also known as: onewithswim.com
Website: onewithswim.com
Category: Clothing & Underwear
Location: Darien
Listed on Five Star Index: 2026

About these reviews

Replies: The company replied to 90% of reviews.
Latest: Most recent review: October 2026.
Edits: Reviews are shown as their authors wrote them. The company can reply, but cannot edit them.
Score: This company cannot pay to remove reviews or change its score.

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onewith swim reviews

103 approved reviews, newest moderated first

Ashley
Oct 22, 2026
Super fast response and very helpful
Super fast response and very helpful. I am so excited to get my bathing suit. This has been a wonderful customer service experience.
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Jinie C.
Oct 12, 2026
Easy customer support experience
Easy customer support experience. Quick and provides specific links if they can't resolve within email.
Response from onewith swimOct 13, 2026
Thank you so much for your review, Jinie! So happy to hear you had a positive experience with our support team, and that they were able to help you out :)
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Rom A.
Oct 3, 2026
I had a really positive experience with…
I had a really positive experience with Pearl, the Virtual Support Assistant at onewith. She was very kind and helpful when I reached out to ask how I could properly contact the hiring team regarding my application. She explained that the customer support team could not access hiring records and guided me to follow up through OLJ, which I really appreciated. Thank you, Pearl, for taking the time to assist me and point me in the right direction. I appreciate your help and the warm response! And if the onewith hiring team happens to see this review, I hope you’ll kindly check my application and the email I sent through OLJ. I’m still very interested in the Customer Support Specialist opportunity and would be happy to hear from you.
Response from onewith swimOct 13, 2026
Thank you so much for your review, Rom! We're glad to hear that our support team was helpful, and we wish you the best of luck with your application!
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Adriana
Sep 25, 2026
Both 2 different sizes (small and…
Both 2 different sizes (small and medium) to see which one would fit best and none fit correctly
Response from onewith swimSep 28, 2026
Hi Adriana, sorry to hear your swimsuits weren't a fit! Did you know we have a 14-day return/exchange policy? If not, please review here: https://onewithswim.com/pages/returns-exchanges Please also ensure you've given your suit a stretch as directed if you haven't already! We find that often fixes fit issues.
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Raven
Sep 23, 2026
Great swimsuit and excellent customer…
Great swimsuit and excellent customer service. I did have to size down from my normal size and I am a true small so that is something worth considering when ordering. The swimsuit is very flattering.. you'll love it!
Response from onewith swimSep 28, 2026
Thank you so much for your review, Raven! Happy to hear that the exchange process was easy, and that you find the swimsuit to be super flattering :) Thanks for supporting onewith!
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Mary M.
Sep 14, 2026
Great suit
Great suit! Fit my body so well! Highly recommend!
Response from onewith swimSep 14, 2026
Thank you so much for your review and support, Mary! We're so happy to hear that you love your swimsuit that fits like undies, and that it's a perfect fit :) We hope to have you back soon!
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Gabby M.
Sep 2, 2026
bought multiple suits from this site…
bought multiple suits from this site return policy sucks now i’m stuck with them if i don’t want to exchange for store credit. don’t purchase from this store!
Response from onewith swimSep 3, 2026
Hi Gabby, thank you for sharing your feedback. We took a look at your orders, and would love to clarify a few things here. 2 of the items you purchased were part of a 30% off promo, rendering them eligible for a return for store credit only. This was clearly listed across our site at the time of purchase, including in the item's title and description, and shown in your email confirmation. The other items were marked Final Sale. Items purchased at full price and not marked final sale remain eligible for a standard return or exchange, and our full return policy is posted on our site under Returns & Exchanges. We do our best to make our policies as clear and visible as possible, and our customer support team is always happy to answer any questions before or after purchasing.
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rachel
Aug 31, 2026
Love the bikini
Love the bikini, and super fast shipping. I’m 5’2” 123lbs 32d post breastfeeding tatas. I ordered size small bottoms and top. I could have prob used a medium top but I can make the small work.
Response from onewith swimSep 3, 2026
Thank you so much for supporting onewith, and for your kind words, Rachel! We're so glad you love your bikini that fits like undies, and that it arrived quickly. We hope to have you back in the future!
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