
Stasher
Dealeco-friendly ziplock bags
Stasher, the eco-friendly ziplock bags, landed on the national radar after pitching the sharks in Season 9, and convinced Mark Cuban to invest.
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From the show
The Shark Tank pitch
- $400K
- Asked for
- 5%
- Offered equity
- $8M
- Sought valuation
- $400K
- Deal amount
- 15%
- Deal equity
- $2.7M
- Deal valuation
Kat Nouri faced the sharks in Season 9, Episode 15 in the episode that aired January 7, 2018. Stasher, the eco-friendly ziplock bags, pitched in the Green & CleanTech category, one of 17 green & cleantech businesses to brave the Tank across all 17 seasons.
They came in asking $400,000 in exchange for 5% equity, putting a $8M valuation on the business.
Mark Cuban made the deal at $400,000 for 15% equity. That priced the company at $2.7M, a haircut from the $8M the founders walked in asking for, which is how negotiations in the Tank usually go.
Across Season 9, 65 of 96 pitches ended in a handshake. In the Green & CleanTech category overall, roughly 53% of pitches have landed a shark across the show's history.
The full story
Everything to know about Stasher
Stasher makes reusable, sealable silicone food storage bags meant to replace disposable plastic zip bags. They are airtight, leak-resistant, and can go in the freezer, microwave, dishwasher, and even boiling water, so the same bag is used over and over for years instead of being thrown away. The brand was founded by Kat Nouri, an entrepreneur with a background in silicone home goods who had already started a related company, Modern Twist, before launching Stasher.
Nouri came into Season 9 asking for 400,000 dollars for 5 percent. She pitched Stasher as both an eco-friendly swap and a genuinely better everyday product, leaning on her manufacturing know-how. Mark Cuban agreed to a deal on air, with the structure including investment plus a line of credit in exchange for a larger 15 percent stake than the original offer.
The pitch stood out because the product sat at the intersection of two trends, reducing single-use plastic and upgrading kitchen basics, with a founder who clearly understood silicone manufacturing. A simple, repeatable product solving an everyday waste problem made the appeal easy to grasp, and Cuban's involvement added credibility to the brand's growth story.
Where Stasher is now
The on-air deal with Cuban did not ultimately close, but Nouri has described that as a fortunate turn, since the exposure boosted visibility and the company secured outside investment soon after. Stasher rode the wave of demand for plastic alternatives, expanding into more sizes and shapes and getting onto major retail shelves.
The standout milestone came fast: in December 2019, less than two years after the episode, consumer-goods giant SC Johnson, the maker of Ziploc, acquired Stasher. Under that ownership the brand broadened its lineup and stayed widely distributed. As of 2026 Stasher remains a well-known, actively sold brand, making it one of the bigger Season 9 success stories.
Where to buy Stasher
Stasher is easy to find today. You can buy it on Amazon, on the official site at stasher.com, and at major retailers such as Target and The Container Store. The range covers many sizes and shapes, from snack and sandwich bags to stand-up bowls, all in the same dishwasher-safe, freezer-safe, microwave-safe silicone. The upfront price is higher than disposable bags, but because each one lasts for years, it generally pays off over time and remains a solid, widely available choice.
Is Stasher still in business?
Read our 2026 update on where the company is now.
Sold on Stasher?
Check today's price and availability before it swims away.
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Frequently asked questions
Where can I buy Stasher?
Check current price and availability on Amazon. Note that some Shark Tank products are discontinued or sold under a new name.
Did Stasher get a deal on Shark Tank?
Yes. Stasher closed a deal for $400,000 in exchange for 15% equity, with Mark Cuban.
Which shark invested in Stasher?
Mark Cuban invested in Stasher ($400,000 total as aired).
What season of Shark Tank was Stasher on?
Stasher appeared in Season 9, Episode 15, which aired January 7, 2018.
How much was Stasher asking for on Shark Tank?
The founders asked for $400,000 for 5% of the company, a $8M valuation.
Did Stasher get acquired?
Yes. SC Johnson, the company behind Ziploc, acquired Stasher in December 2019, less than two years after its Shark Tank appearance. The brand has stayed widely sold since.
Are Stasher bags safe for the microwave and freezer?
Yes. Stasher bags are made of food-grade silicone rated for the freezer, microwave, dishwasher, and boiling water, which is what lets them be reused for years.
Did Stasher close its deal with Mark Cuban?
Cuban agreed to a deal on Season 9, but it did not ultimately close. Founder Kat Nouri raised outside investment instead, and the brand was later acquired by SC Johnson.
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