# 677: We Built a $250M Cold Plunge Brand - From a Garage | Plunge Page: https://stenobird.com/podcast/the-foundr-podcast-with-nathan-chan-974008/677-we-built-a-250m-cold-plunge-brand-from-a-garage-plunge Text version: https://stenobird.com/podcast/the-foundr-podcast-with-nathan-chan-974008/677-we-built-a-250m-cold-plunge-brand-from-a-garage-plunge.md Podcast: [The Foundr Podcast with Nathan Chan](https://stenobird.com/podcast/the-foundr-podcast-with-nathan-chan-974008) Published: 2026-06-25T14:00:00+00:00 Episode link: https://www.podtrac.com/pts/redirect.mp3/pdst.fm/e/chrt.fm/track/5DA136/traffic.megaphone.fm/FMPL6569626860.mp3 Audio file: https://www.podtrac.com/pts/redirect.mp3/pdst.fm/e/chrt.fm/track/5DA136/traffic.megaphone.fm/FMPL6569626860.mp3 Processing state: not_requested JSON: https://stenobird.com/v1/public/podcasts/the-foundr-podcast-with-nathan-chan-974008/episodes/677-we-built-a-250m-cold-plunge-brand-from-a-garage-plunge Duration seconds: 3657 ## Resource Ryan Duey was living in an RV with his float spas closed and no backup plan when he and Michael Garrett built their first cold plunge from a retrofitted $100 bathtub in a garage. They turned their Shopify store on with zero marketing—and got a sale. What followed was one of the most unlikely scaling stories in DTC history: $30 million to $80 million in a single year, $250 million in cumulative revenue, four sharks bidding on Shark Tank, and a category they essentially created from scratch—all bootstrapped, all assembled in-house in California. In this interview, the co-founders of Plunge break down the real cost of scaling a high-ticket inventory business, why they lost an estimated $20 million in revenue from lead times alone, and the organic influencer strategy that built the brand before they ever ran a paid ad. What you'll learn in this interview: • How they got their first sale with zero marketing—and the Black Friday that showed them how big this could get • The cash flow trap every inventory-heavy founder hits: why a great P&L and an empty bank account can exist at the same time • How customer prepayments funded growth for years—and what forced the switch to holding inventory • Why long lead times cost Plunge an estimated $20 million in lost sales • From buying parts on Amazon to co-designing a custom chiller in China—the full supply chain evolution • How a single Instagram comment to Aubrey Marcus started a chain of organic gifting to Huberman, Tony Hawk, and Rich Roll • The Shark Tank deal that never closed—and why they still got the PR, the airing, and the exposure • How they bought plunge.com from a New Orleans jazz band for $250K—and why the trademark was the bigger win • Why nearly half of all orders close through a phone call or SMS, not a checkout bu… ## Actions - request_transcript: `POST https://stenobird.com/v1/public/podcasts/the-foundr-podcast-with-nathan-chan-974008/episodes/677-we-built-a-250m-cold-plunge-brand-from-a-garage-plunge/transcription-requests` — Idempotently request low-priority transcript generation for this episode. - read_markdown: `GET https://stenobird.com/podcast/the-foundr-podcast-with-nathan-chan-974008/677-we-built-a-250m-cold-plunge-brand-from-a-garage-plunge.md` — Read the agent-friendly Markdown representation of this episode resource. A page view does not enqueue transcription. Agents should invoke `request_transcript` explicitly when they need this episode processed. ## Transcript Full transcripts are not published on public pages unless there is a clear rights basis.