our shark tank journey
our viral swimsuits made a splash on Shark Tank, Season 16 Episode 9 — and we scored a deal with two Sharks! watch on ABC.com or Hulu.
our must-have styles that we brought to the Tank
Shark Tank featured items
the magic of wearing onewith
see it on, IRL
Size: M
Size: S + M
Size: 2XL
Size: S + M
Size: L
1 FREE exchange on eligible US orders
size inclusive (XXS-3XL)
patented, US Patent No. 12,537,039
hi! i'm hayley, founder of onewith.
we’re so happy you discovered our swim that fits like undies on Shark Tank; welcome to whole new kind of swimsuit that is better-than-seamless, and truly onewith your body. thanks for supporting my female-founded & led small business!
What people are saying
These are exactly what I’ve been looking for my whole life. I love the way I look in seamless underwear and always felt like I looked smushed in a regular swim bottom. This fits PERFECTLY
Jillian M.
Verified Buyer
Was very skeptical on the fit, but these truly do feel like your no show underwear!
Maritza R.
Verified Buyer
I probably have close to 100 bathing suits and NONE have the fit that these do!! They fit like they were custom-made and don’t need adjusting every time I get out of the water!
Amanda F.
Verified Buyer
My soft bits don’t spill. I’m comfortable and I look great. Exactly like my best of pair of underwear! It’s amazing
Janet R.
Verified Buyer
I’m obsessed, genuinely the best fitting bathing suit bottoms I’ve ever owned. Highly HIGHLY recommend! I am 5’4 ,145lbs and I got a size medium :)
Kylie B.
Verified Buyer
“we changed swimwear so that
women don't feel the need to
change themselves.”
@onewithswim
@itsmisslys
@ahmeimae
@traceydoes_
