August 15, 2026
Why Elastic-Free Swimwear Feels More Comfortable
If you've ever worn a swimsuit that digs into your hips, squeezes your skin, and leaves you so frustrated, you're not alone. onewith was literally invented out of that same frustration. Our founder was trying swimsuits on while packing for a trip to Miami, and hated all of them, when she said out loud "I just want a swimsuit that fits like my no-show underwear does!"
At onewith, we make swimsuits that fit like your favorite underwear: soft, flexible, and completely edgeless against your body. Our patented bonded construction takes "seamless" swimwear a step further, creating a smooth, comfortable fit without traditional elastic or bulky seams.

What Is Elastic-Free Swimwear?
Elastic-free swimwear is designed without the traditional elastic bands commonly used to create tension and keep a traditional swimsuit in place.
Instead of relying on tight elastic and bulky seams, our swimsuits use patented bonded construction to create a smooth, flexible edge that sits comfortably against your body.
The result? A swimsuit that feels less like something you're squeezing into and more like something you can confidently feel your best in.
Beyond Seamless Swimwear: What's the onewith Difference?
If you've ever wanted a swimsuit that fits like seamless underwear does, you might think that "seamless" swimwear is the answer. Unfortunately, it's still constructed with tight, bulky seams, only the fabric is folded over so you can't see it.
Our swimsuits go beyond traditional "seamless" swim construction, for a fit that's totally edgeless.
Instead of hiding the outer appearance of seams, we bond 2 layers of normal swim fabric together, so it has a smooth, second-skin fit.
But we didn't stop there.
The Inner Grip Strip Keeps Everything Secure
We line the edges of each and every onewith swimsuit with a flexible inner grip strip that helps keep it securely in place without the tight, squeezing sensation of traditional elastic.
It's smooth and soft against your skin, while remaining flexible enough to move with your body.
So whether you're swimming, walking along the beach, lounging by the pool, or chasing after your kids, you don't have to constantly pull, tug, or adjust your swimsuit.
Comfortable Swimwear Shouldn't Be Complicated
You shouldn't have to choose between a swimsuit that stays put and one that actually feels good on your body and makes you feel your best.
Traditional swimwear has relied on elastic and tight construction for decades. But onewith invented a brand new way to create a secure swimsuit fit.
Or swimsuits and bikinis that fit like underwear™ are designed to give you the security and comfort you want without the digging, squeezing, and adjusting you don't. Because your swimsuit should work with your body, not against it.
That's what makes onewith more than just seamless swimwear. It's swimwear designed to feel like underwear.

Frequently Asked Questions
What is elastic-free swimwear?
Elastic-free swimwear is designed without traditional elastic bands around areas like the waist or leg openings. Instead, onewith uses an innovative construction method to create a secure fit while reducing pressure and digging. It's a perfect swimsuit for those with sensitive skin, as well!
How does elastic-free swimwear stay in place?
Our swimsuits use an inner grip strip combined with patented bonded construction to help keep the swimsuit securely in place. The grip is designed to be flexible and smooth against the skin.
What is the difference between "seamless" and elastic-free swimwear?
"Seamless" swimwear is swimwear designed to minimize the visible appearance of seams. Elastic-free swimwear eliminates seams and elastic from the construction entirely, which is why our bonded construction goes beyond seamless swimwear. No digging in or red marks left behind!
Where can I find a swimsuit fits like underwear®?
onewith swimwear invented swimsuits that fit like no-show seamless undies! Ready to make the switch from traditional swim that digs, and try our edgeless, elastic-free swim? Check out the collection of better-than-seamless swimwear here, and be sure to follow along on our IG for all updates.
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