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NINE80 Serpa 12oz Tumbler Mud Season Vol. 2

NINE80 Serpa 12oz Tumbler Mud Season Vol. 2

Marsh Brown
Regular price $42.00 USD
Regular price Sale price $42.00 USD
Sale Sold out
Serpa 12oz Tumbler Serpa 12oz Tumbler Serpa 12oz Tumbler
NINE80 Limited Edition
NINE80 Serpa 12oz Tumbler Mud Season Vol. 2 NINE80 Serpa 12oz Saturnalia 2025
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Mud Season Vol. 02 - Only 980 made


Locals call it “Mud Season.” After ski runs close and before summer trails churn up dust, the community shifts gears. Warm temps. Melting peaks. From fast-moving rivers to cool desert drives, or heading for far-off coasts, now is the time to get out there. 

Features:

  • 100% leak-proof, stainless steel lid.
  • Sip & Stow™ Lid magnetically stows in the Quiet-Set base.
  • 3-Way Insulation keeps cold colder and hot hotter.
  • High-end, inner-lid sips beautifully.
  • BPA-Free kitchen-grade stainless steel.

 

 

SMMT is a proud member of 1% for the Planet

Powerful products protect perfect places. SMMT is a member of 1% For The Planet, contributing to Summit Land Conservancy to protect open spaces and water locally.

Why the Serpa Tumbler

The Serpa Tumbler is our take on the modern insulated cup – crafted for mountain days and the moments earned after. Inspired by Park City’s mining heritage and shaped by timeless design, it blends 18/8 kitchen-grade stainless steel, vacuum insulation, and a patent-pending steel lid system into one refined, functional vessel.

Why It’s Different

  • Patent-pending double-lid system with magnetic nesting steel lid
  • 18/8 kitchen-grade stainless steel with no interior coatings
  • Small-batch production for elevated quality control
  • Designed for both outdoor adventure and après gatherings

Why It’s Healthier

  • BPA-free components
  • Non-reactive stainless steel interior
  • Dishwasher safe for proper sanitation
  • Built to replace disposable cups

Why It’s Worth It

The Serpa isn’t mass-produced trend drinkware. It’s a considered piece of mountain utility—crafted to last, designed to elevate daily rituals, and made in small runs to protect quality and intention.

Personalization

We can customize tumblers with laser etching for name, monogram or corporate logo. Please reach out to care@smmtoutdoor.com for pricing and more information.

Size & Dimensions

Dimensions: 6.5” Height x 3.25“ Diameter.
Fits most cup holders—check your cupholder dimensions to ensure fit.

Weight: 11.5 oz 

Capacity: 16 oz

Shipping

We ship within 2 business days of order. We currently only ship in the US, additional options or needs reach out to care@smmtoutdoor.com.

Warranty

It is our mission to craft products with the absolute finest materials that live up to our harsh mountain town environment. That is why we back all of our products with SMMT's Limited Lifetime Warranty.

Care Information

Serpa tumblers can be cleaned with warm soapy water and are dishwasher safe.

Do not microwave. Fire or injury may occur.

Leakproof Seal:
Do not use with Dry Ice.
Do not use with Carbonated Beverages
Do not use for storage of perishable food.
These uses can cause pressure to build inside the vessel. If pressure builds up, the cap can be difficult to remove or forcefully eject and cause harm.

Do open periodically to relieve pressure.

Please contact SMMT Outdoor at first signs of damage or weakness to lid or seal. care@smmtoutdoor.com

  • ‘Marsh Brown’ Kitchen-Grade Stainless Steel

    A heritage earthen-brown color

  • ‘Red Rock’ Tritan Lid and Quiet-Set Base

    Inspired by the sandstone shale exposed after the snow melts

  • Only 980 made

    Small-batch Uncommon Drops. When they’re gone, they’re gone for good

  • NINE80 Limited Editions

    Our NINE80 Limited Editions are only made in quantities of NINE80 (referencing the elevation of the mountains above our town). We release these to our community first, and when they sell out they are gone for good.

  • "Designed for mountain decks, backcountry trails, and anywhere your view can be magnified."
  • "...Ingenious..."

  • "If you think there is no room left for innovation in the water bottle world, you haven't met SMMT."
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"Best tumblr I have, out of many!

I love that the lid actually seals properly, I don't have any worry about leaks and the lid fits snuggly on the bottom when I don't need it. Also is great at keeping my drinks the proper temp for a long while."

–Justin

3-Way Insulation™

Our Sèrpa Tumblers go beyond traditional double-wall vacuum insulation (01) by also protecting against temperature escape with an unrivaled upper barrier (02) and by creating separation off the ground to reduce downward conduction and energy loss (03)

Sip & Stow™ Double Lid System

Our patent-pending, 100% leak proof lid system is made from two engineered parts: a stainless steel upper lid which magnetically stows in the base, sealed away from dirt and debris, and an inner-lid ergonomically designed for pleasant sipping, made from high-end, BPA-free Tritan polymer.

Connecting The Action To The Pause

Our mountain-environment shaped a simple obsession: a better insulated tumbler to enhance the moment of pause. Designed to get you through your active days and elevate the moments when you slow down.

Overall rating: 4.484375 / 5 from 128 reviews.

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Reviews

Best in Class Design & Great Gifts

"We love our Sherpa Tumblers and use them for morning coffee and happy hour cocktails. The design is refreshingly original and the no-spill lid has saved the day several times! A nice bonus is that these have become our go-to host & hostess gifts. Beats a candle every time!"

Chris H. (5/5)

"Really impressed with this tumbler. The build quality is nice and there was actually a lot of thought put into the design. The lid is amazing, no guessing when the liquid is going to enter your mouth. It's fast and predictable unlike some other brands where it's like turning on a hose in front of your face"

Travis D. (5/5)

My new favorite!

"I am super happy with this tumbler. I recently packed with hot coffee for a day out with kids, and did a great job. No leakage. Piping hot coffee hours later. Stylish design. I've had friends comment how much they like the design features and style, so I already ordered some to give as gifts next month. One caveat, you need a larger cupholder if you are going to use in a vehicle. My truck has larger cup holders, but my wife's SUV does not. Highly recommended!!"

Justin A. (5/5)

The new "Go To"

"The SMMT Sherpa 16oz Tumbler is my new "go-to" drinkware, such that I've picked up multiple colors over the past few months. I've been using the Dreamscape Blue as my daily driver for coffee (both hot and cold), High Meadow Sage as a camp traveler, and Triple Black for adult beverages. These work great in the car, around the campfire, and on the golf course. Love the mason jar design inspiration, the functionality of the leak proof lid, and the magnetic storage that doubles as a coaster. Well done, SMMT!"

Max M. (5/5)

Incredibly high quality

"Everyone that touches this comments on how high quality it feels -- it's definitely a cut above a typical tumbler! The fit and finish as well as a few of the features (like the built in coaster) make it special."

Sunil N. (5/5)

"Cup will not sit flat in my car cup holder (its too fat). The lid is hard to take on/off. And drinking through the plastic part? Ick. I wish the lid worked without the plastic sippy piece. Not for everyday use, for me. 2 stars for cool design."

Janice (2/5)

Functional and attractive

"I’ll start with the couple changes I’d like to see 1) volume, it would be nice to see a 20oz version. 2) the seem on the bottom 1/3 of the thermos where the color changes isn’t quite flush which is a minor thing but for a $40 + cup should be perfect. But that’s it for those. The design is great and works very well. I tried making hot tea in my kettle and immediately transferring it to the tumbler and left it for an hour. The lid came off with no problem (some people had commented about an issue here but I had none) and the tea was still piping hot - like too hot to drink. The rubber base is great. The little stow away feature for the cap is great. Very happy with the purchase and would buy another if they offer a slightly larger version. Recommended."

Ethan (4/5)

Favorite mug/drink holder

"I’ve loved my SMMT mug, great for my AM coffee, works double time as a cocktail shaker in rhe PM. The sealed lid is a game-changer compared to Yeti and other mugs."

Mike R. (5/5)

The last cup you’ll buy

"It doesn’t get any better than these tumblers, we now use them, travel with them and gift them. There is no better quality or design."

Sarah (5/5)

Love it!

"I absolutely have to use a mug that seals when it is not in my hand because I have a toddler who loves to dump things. So far no spills or leaks! The heat and ice retention are both very good. The only issue I have is sometimes after taking the outer lid off and on multiple times the inner lid becomes too tight and I have trouble unscrewing it."

Hannah L. (5/5)

Q&A

Frequently Asked Questions

How do I clean and maintain my SMMT tumbler?

Serpa Tumbler can be easily cleaned with warm, soapy water, and they are dishwasher safe.

For the best long-term care, follow the care instructions provided with each product to maintain its quality and durability. We’re here to help your gear last, adventure after adventure.

Are SMMT tumblers dishwasher safe?

Absolutely! Our Serpa Tumblers are built tough with 18/8 stainless steel, making them dishwasher-friendly for easy cleaning after a long day of adventures. For those who prefer a gentler method, hand washing with warm, soapy water works beautifully too. Whichever way you choose, your tumbler is crafted to endure and maintain its peak performance.

Are SMMT tumblers made for hot or cold beverages?

All SMMT Serpa Tumblers are designed to keep both hot and cold beverages at the perfect temperature. Made from high-quality stainless steel, it ensures your drinks stay just how you like them—whether it’s a hot coffee in the morning or a refreshing iced drink after your adventure. Its durable, sleek design is perfect for any activity, whether you're out in nature or on the go. Keep your drink at the ideal temperature wherever your day takes you!

What is the warranty on SMMT tumblers?

At SMMT, we craft products with the utmost attention to quality and durability, built to withstand the rugged mountain environment.

To ensure your gear is up for the challenge, we offer a Limited Lifetime Warranty covering manufacturing defects and material failure for the expected lifespan of the product.

Please note that the warranty does not cover wear and tear, washing/heat damage, or damages caused by alterations or third-party services (e.g., airlines). If you have a warranty claim or need more information, you can start the process here.

What makes the Serpa Tumbler better?

The Serpa Tumbler is our take on the modern insulated cup-crafted for mountain days and the moments earned after. Inspired by Park City’s mining heritage and shaped by timeless design, it blends 18/8 kitchen-grade stainless steel, vacuum insulation, and a patent-pending steel lid system into one refined, functional vessel.

Why It’s Different

  • Patent-pending double-lid system with magnetic nesting steel lid
  • 18/8 kitchen-grade stainless steel with no interior coatings
  • Small-batch production for elevated quality control
  • Designed for both outdoor adventure and après gatherings

Is this tumbler really healthier?

We think so.

  • BPA-free components
  • Non-reactive stainless steel interior
  • Dishwasher safe for proper sanitation
  • Built to replace disposable cups

Is the Serpa Tumbler worth it?

The Serpa isn’t mass-produced trend drinkware. It’s a considered piece of mountain utility—crafted to last, designed to elevate daily rituals, and made in small runs to protect quality and intention.

  • BORN IN THE MOUNTAINS. PERFORMANCE ANYWHERE

  • CRAFTED FROM THE MOST PREMIUM MATERIALS AVAILABLE

  • FIND YOUR PEAK CHILL WITH OUR PATENT-PENDING LID SYSTEM

  • 3-WAY INSULATION FOR COLDER COLD AND HOTTER HOT.

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