Swimsuits
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Shark Tank Spotlight
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When Onewith stepped into the Shark Tank, it wasn’t just selling swimwear—it was promoting a movement. Combining comfort, function, and a body-positive message, Onewith stood out in a sea of fashion-focused but function-lacking swimwear brands. Here’s an in-depth look at how Onewith made waves on national television—and why its message is resonating with so many.
Swimsuits, especially for women, are often designed more for looks than practicality. They dig in at the wrong places, ride up or down at the wrong times, and often don’t accommodate real body shapes comfortably. Traditional swimsuits rely on tight elastic bands to stay on, but that comes at the cost of comfort.
Onewith saw the market gap: swimwear that feels like a second skin and moves with your body instead of against it.
Onewith created a patented line of swimsuits that feel like seamless underwear—no tight bands, no seams digging in, and no awkward adjusting. Their tagline, “swimwear that feels like underwear,” perfectly encapsulates the idea.
Key Features:
The result is a swimsuit that fits comfortably and stays put, whether you’re swimming laps or lounging on the sand.
Onewith appeared on Shark Tank Season 15, Episode 13, and the pitch immediately resonated with both the Sharks and the audience. The founders shared personal stories, a clear market gap, and impressive sales figures that proved their product wasn’t just a passion project—it was a viable business.
The Sharks appreciated:
While there was some concern about scalability and competition in the swimwear space, the pitch stood out thanks to the product’s innovation and emotional relatability.
Barbara Corcoran and Jamie Lima |
Accepted offer of $200,000 for 20% equity |
Mark Cuban |
No offer |
Lori Greiner |
No offer |
Kevin O’Leary |
No offer |
Season and Episode |
Season 16, Episode 9 |
Air Date |
January 24, 2025 |
Entrepreneurs |
Hayley Segar |
Product |
OneWith is a swimwear brand that offers seamless, elastic-free swimsuits designed to provide the comfort of underwear. |
Investment Sought |
$200,000 |
Equity Offered |
5% |
Valuation |
$4 million |
Initial Sales |
2024 Sales: $1.3 million and Total Sales: $2.3 million since the late 2021 launch |
Retail Plans |
Hayley expressed interest in expanding into retail to increase brand visibility, which would pair well with her Profit Margins of approximately 75%. |
*After the filming of a Shark Tank episode, investments are subject to thorough audits and evaluations. During this time period, the terms of the investment can be altered or canceled by either party. As a result, the deals presented on the show may not always come to fruition for various reasons. This site does not guarantee the accuracy of any final investment figures.
Since their appearance, Onewith has seen a significant spike in online orders and social media buzz. Customers rave about the comfort and the confidence the swimsuits bring. The brand has also expanded into new colorways and styles, including one-pieces and high-waisted options.
They’ve also doubled down on their messaging: body positivity, comfort-first, and confidence-boosting design.
Onewith was founded by Hayley Segar on a mission to change the swimwear experience for women. Like many, they were frustrated by how traditional swimsuits felt and fit—tight waistbands, awkward bulging, and the constant readjustments. Rather than settle for discomfort, they decided to create a solution.
Their backgrounds weren’t in fashion design or textiles but in entrepreneurship and innovation. That outsider perspective helped them question the status quo and build something truly different.
Onewith isn’t just about selling swimsuits—it’s about reshaping the way women feel in them. By removing the pain points and discomfort of traditional swimwear, Onewith invites people to enjoy the beach, pool, and summer sun with confidence and ease.
In a world where fashion often prioritizes form over function, Onewith is a refreshing reminder that you don’t have to sacrifice comfort to feel beautiful.
Onewith swimsuits are designed to fit like no-show underwear, featuring a patent-pending, dig-free, elastic-free, and edgeless design for maximum comfort and a second-skin feel.
Onewith swimsuits are generally true-to-size. It’s recommended to consult their size guide, and each product page includes fit notes to assist in selecting the best size, especially if you’re between sizes.
Onewith offers a 14-day return/exchange policy starting from the delivery date. The first exchange is free, while returns incur a $12.50 fee to cover shipping. Items must be in their original, unworn condition.
Yes, Onewith provides international shipping. All international sales are final, with no returns or exchanges. Shipping rates are calculated at checkout and typically include duties/customs.
Onewith cannot guarantee that the inner grip strip inside their suits is free from trace amounts of latex. Individuals with latex or adhesive sensitivities are advised to exercise caution.
