The (Un)Official Drinkware of Après
Sip and savor at seven thousand feet. We’ve elevated the stainless steel insulated tumbler to bring ultimate sophistication to every well-earned ‘cheers’ after an active day in the mountains.
Features:
- Proprietary leak-proof, stainless steel lid with knurled edge.
- Lid magnetically nests underneath while sipping.
- Designed for on-the-go travel seekers and all-season enthusiasts
- Vacuum insulation keeps drinks hot or cold for hours
- Durable, kitchen-grade stainless steel and powder coat that lasts.

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
Why the Serpa Tumbler
Size & Dimensions
Size & Dimensions
Shipping
Shipping
Warranty
Warranty
Care Information
Care Information
Sip & Stow Lid System
While sipping, the upper-lid magnetically stows out of the way of dirt & debris.
3-Way Insulation
Proven in the mountains, overbuilt insulation keeps cold colder & hot hotter.
Kitchen-Grade Materials
BPA-Free with 18/8 kitchen-grade stainless steel & no interior coatings.
"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
Sip & Stow Double Lid System
Smooth-action, 100% leak proof upper steel lid magnetically stows while you sip, doubles as a stable coaster. Patent-pending. Also, the inner lid, made from premium Tritan polymer, is designed for the perfect sip; updated with a torque grip for easy removal.
3-Way Insulation
This is more than vacuum-sealed insulation. SMMT Serpa Tumblers provided 3 distinct methods to keep your drink at the perfect temp.
01 Lateral double-wall insulation uses 2-layers of vacuum-sealed kitchen-grade stainless steel to block temp escape
02 Our patent-pending double lid system prevents temp loss from the top.
03 Base-up surface separation, the nesting-cavity in the tumbler’s base provides a conduction barrier from temp escaping into the ground, where significant energy exchange occurs.
Elevate Your Chill
We craft refined outdoor drinkware for the moments between the action. The earned pause. The slow down. The golden hour. The afterglow. We design for connection, not simply hydration. Our tumblers perform at the highest level so you can relax at yours.
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.
Why Choose SMMT Outdoor
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.