Rounderbum
Image: Rounderbum official website
✓ Got a deal Still in business Season 9, Ep. 18 💄 Fashion & Beauty

Rounderbum on Shark Tank

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Rounderbum makes padded underwear and shapewear for men designed to enhance the appearance of the buttocks. The brand targets men looking for a fuller silhouette in their clothing, similar to shaping garments more commonly sold to women.

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Official website checked Nov 1, 2026.

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⏱ Rounderbum in 30 seconds

  1. The ask$150K for 10%Valued at $1.5M
  2. In the tankDeal: $150K for 5%With Kevin · plus royalty
  3. After the showNot confirmedNo public record either way
  4. TodayStill in business

Rounderbum Shark Tank deal

Asked for
$150,000 for 10%
Asking valuation
$1.5M
Result
Deal
Final deal
$150,000 for 5%
Deal valuation
$3M
Structure
Royalty
Founders
-
From
CA
Aired
Jan 21, 2018
Asked
$1.5M
Got
$3M

Would you have invested in Rounderbum?

The pitch

The founders from CA pitched Rounderbum in Shark Tank Season 9, Episode 18 (aired Jan 21, 2018). They asked for $150,000 in exchange for 10% equity, valuing the business at $1.5M. The entrepreneurs walked away with a deal from Kevin O'Leary: $150,000 for 5%. That put the final valuation at $3M, 100% above what they originally asked for. The deal included a royalty.

What happened to Rounderbum after Shark Tank?

Still in business Last checked November 1, 2026

Our checks

  • : Product photo added from the official website.
  • : Visited the official website: it is working.

As of our last check (November 2026), Rounderbum appears to still be in business. Its official website is online.

Sources (1)
  1. rounderbum.com/products/basic-padded-boxer-brief-modal
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Frequently asked questions

Did Rounderbum get a deal on Shark Tank?

Yes. Rounderbum got a deal with Kevin O'Leary for $150,000 and 5% equity.

Which Shark invested in Rounderbum?

Kevin O'Leary invested in Rounderbum on Season 9 of Shark Tank. Note that some on-air deals change or fall through during due diligence.

Is Rounderbum still in business?

As of our last check (November 2026), Rounderbum appears to still be in business. Its official website is online.

What season and episode was Rounderbum on Shark Tank?

Rounderbum appeared in Season 9, Episode 18, which first aired on January 21, 2018.

Where can I buy Rounderbum?

You can buy Rounderbum from its official website and often on Amazon.

What was Rounderbum's valuation on Shark Tank?

The founders valued Rounderbum at $1,500,000 when they entered the Tank, and the final deal valued it at $3,000,000.

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