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

Showing 65 reviews with 5 stars · Clear filters

Sebastiaan D.
Sep 2, 2025
Phenomenal product and world-class customer service
The product is Absolutely phenomenal. The quality of the materials, the thoughtfulness of the designs is amazing. Their customer service is next level. We had some real issues making sure that things arrived internationally, and their team not only made sure that they arrived but stayed in touch with us throughout the entire process and made sure it didn't cost us any additional money. I've rarely seen a brand where everyone working there cares so deeply about a great product and a great customer experience. I couldn't recommend it more.
Response from onewith swimJun 7, 2026
This made us smile from ear to ear. Thank you for your review, Sebastiaan! International shipping can always come with some challenges, and we're so glad our team was able to see it through with you. Your support truly means the world!
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Justin
Aug 28, 2025
Girlfriend Won't Wear Anything Else
Got the Woodmont Cheeky Bikini for my girlfriend and she hasn't wore another bikini since. She looks amazing in it and says she feels amazing in it too! Ordering another color as we speak. Thanks onewith!
Response from onewith swimJun 7, 2026
Thank you so much for your review, Justin! So happy to hear that your girlfriend is loving the way she's feeling in her Woodmont bottom! Thanks for helping her add to her onewith collection, too. Your support truly means the world to us!
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Corey Y.
Apr 1, 2025
Great Customer Service
This company's response time is quick and returns are very easy. I've bought many products from their website, and one time they ran out of stock prior to my purchase of an item. They contacted me to let me know, and gave me a refund for the item and a coupon code for my next purchase for the inconvenience.
Response from onewith swimJun 7, 2026
Hi Corey, thank you so much for your review! This is so great to hear; as a small business, hiccups happen, and we always want to make them right. So glad you've stuck with us through so many orders. Thanks for supporting onewith!
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VaRey A.
Nov 26, 2024
AMAZING PRODUCT
The website is user friendly and really easy to browse their products. I love getting their emails because they always include sales and important updates. The swim wear was so flattering and I threw out all of my other swimwear after wearing one with swim! The staff and customer service is amazing and will be purchasing more in the future. I would love for them to come out with fun patterns and designs, but I got the black color because it's classic. Highly recommend!
Response from onewith swimJun 7, 2026
Thank you so much for your incredible review, VaRey! It means the world that you had a positive shopping experience, and that you've made the switch from traditional swim that digs and squeezes (the worst!!) to our swim that fits like undies! We really appreciate your continued support, and hope to have you back soon.
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Allyssa R.
Nov 15, 2024
I love onewith!!
I love onewith!!! What impressed me most was the quality of the fabric. It feels durable yet lightweight, with excellent stretch and support. The fit is flattering without being restrictive, and designed with real bodies in mind!! I especially appreciated the inclusive size range, ensuring everyone can find something they feel great in.
Response from onewith swimJun 7, 2026
Thank you so much for your review and kind words, Allyssa! We're so happy to hear that you've been loving the quality of your onewith swimsuits, and that they provide a flattering, second-skin fit. We believe that every woman deserves to feel her best in swim, which is why we offer an inclusive size range. Thanks for your support!
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Sarah T.
Nov 15, 2024
I love these swimsuits
I love these swimsuits! They are flattering and they stay put (don’t bodysurf in the string top, though-learned that one the hard way!) I would size down when purchasing, from my experience. I own several.
Response from onewith swimJun 7, 2026
Thank you so much for your kind review, Sarah! We're thrilled to hear that you have several onewith suits in your collection. For the most secure top for body-surfing, we'd recommend Mystic! And, of course, you can never go wrong with a one piece. Looking forward to having you back in the future!
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Audrey B.
Nov 7, 2024
Love OneWith
Love OneWith! great product, great customer service, representative content, innovative and unique. I've recommended their swimsuits to many friends!
Response from onewith swimJun 7, 2026
Thank you so much for your review, Audrey! It means so much to us that everything we put out is hitting in all the right ways, from representative content, helpful customer service, and of course, a flattering swimsuit fit! Thanks for spreading the onewith word with your friends, too! That truly means the world.
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Renae
Nov 7, 2024
I love everything about this company
I love everything about this company! Their swim wear is the most comfortable, flattering bikini I have ever worn. You literally forget you’re wearing it. The colors at limited but the ones they do have are so beautiful! Their customer service is amazing also.
Response from onewith swimJun 7, 2026
Hi Renae, thank you so much for your kind review and support! We're so happy to know that you've been loving your swim that fits like undies, and that it's so flattering and feels like you're wearing nothing! More colors are always in the works; we hope you've been following along :)
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