January 03, 2026
onewith in 2025: A Year in Review for our Swimsuits That Fit Like Undies
2025 was a huge year for onewith and our patented swimsuits that fits like underwear®. From launching brand new styles and colorways to appearing on Shark Tank, this year was all about growth, community, and, of course, our comfortable swimsuits! Here’s a look back at everything we launched, learned, and loved in 2025.
16 New Swimsuits That Fit Like Undies
In 2025, we launched 16 new items of beyond-seamless swim, designed to feel as comfortable and flattering as your favorite no-show underwear. Our newest swim that fits like undies items include:
- Jelly, the sweet beloved blue hue, now available across most styles in our collection of dig-free swim
- Cove, a toasty coastal New England neutral colorway for our two of our best-selling bikini styles, Westerly and Merritt
- Our Anniversary Capsule Collection, featuring three brand-new edgeless styles:
onewith is a small business, and we produce mindfully based on customer demand. We listen closely to our followers and customers, and sometimes, we even ask you to help us design new styles! These launches were thoughtfully produced with comfort, fit, and feedback from our customers in mind.
onewith on Shark Tank: A Deal with 2 Sharks!
In January 2025, our swimsuits that fit like no-show undies took the Shark Tank floor in season 16, episode 9, and walked away with what Mr. Wonderful called a “rare deal.” Why was it rare? Because we scored a deal with both Barbara Corcoran and Jamie Kern Lima! Two powerhouse women who are the perfect fit for our game-changing swimsuits.
A Brand-New onewith Website
This fall, onewithswim.com got a full glow-up! In addition to the updated appearance, the new website makes it easier than ever to find your perfect fit, with:
- A size quiz (it's the next-best thing to actually trying on the suit in person!)
- Extensive sizing tips and see-it-on's to see women wearing specific sizes of our size-inclusive swim
- Fit videos to help you feel confident before your swim arrives
Our First-Ever Collaboration: mari x onewith
Back in February of 2025, we launched the Mari x onewith capsule collection, with three better-than-seamless swimsuit styles in limited edition colorways thoughtfully curated by Bachelor-nation star, Mari Pepin. This was our first collab, and we can't wait to see what's next!
60,000 Customers (and Counting)
Over 60,000 customers are now loving their onewith! We set out to change swimwear so women don’t feel the need to change themselves, and seeing how many women feel more comfortable and confident in their swim means everything to us.
Looking Ahead to 2026
Thank you for making 2025 such an unforgettable year for our small biz and our swimsuits that fit like undies! We have so much planned for 2026, and we can’t wait to share what’s next. Be sure to follow along on Instagram for all the latest onewith updates.
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