She Manifested Her Way to Shark Tank and Built a Swimwear Empire!

What does it take to turn an idea into a game-changing product? In this episode, Hayley Segar, founder of Onewith Swim, shares how she created a swimsuit brand that fits like underwear after struggling to find the perfect fit. From a lightbulb moment in 2019 to overcoming self-doubt, Hayley’s journey was fueled by creativity, persistence, and belief in her vision. 

Hayley opens up about the challenges she faced, like maxing out credit cards and dealing with the stress of going viral on social media. Despite the odds, she kept pushing forward, trusting her intuition and eventually landing two investors. 

Hayley’s story is proof that with perseverance and belief in your idea, anything is possible. Tune in to hear how she made her dream a reality and what you can learn from her entrepreneurial journey!

 

"You have to love your business so much that even on your worst days as a founder, you wouldn't trade it." ~Hayley Segar

In this Episode:

- How a swimsuit frustration sparked Hailey’s big idea

- Turning a living room vision into a real product

- Navigating doubt and DIY entrepreneurship without a fashion background

- Using TikTok to sell out—twice—without ad spend

- Landing a double Shark Tank deal with Jamie and Barbara

- How mindset work helped her overcome self-doubt

- Growing post-Shark Tank and building the “Spanx of swimwear”

About Hayley Segar:

Hayley Segar always loved fashion, but hated swimwear. Nothing ever fit right. Until one day in 2019, after a frustrating try-on session, she said out loud: “I just want a swimsuit that fits like my favorite no-show underwear.” That lightbulb moment sparked Onewith Swim.

Launched in 2021, Onewith created swimwear designed to fit like seamless underwear: dig-free, elastic-free, and edgeless. It’s gone viral for solving a problem most women didn’t think could be solved, and in 2025, Hayley brought the brand to Shark Tank, landing a deal with Barbara Corcoran and Jamie Kern Lima.

Website: https://onewithswim.com/ 

Instagram: https://www.instagram.com/onewithswim/   

TikTok: https://www.tiktok.com/@onewithswim 

Facebook: https://www.facebook.com/onewithswim 

Where to find me:

IG: https://www.instagram.com/jen_gottlieb/   

TikTok: https://www.tiktok.com/@jen_gottlieb    

Facebook: https://www.facebook.com/Jenleahgottlieb   

Website: https://jengottlieb.com/   

My business: https://www.superconnectormedia.com/    
YouTube: https://www.youtube.com/@jen_gottlieb