THERMOS Stainless King 16 oz Tumbler for Hiking and Picnics, Vacuum Insulated 7-Hour Hot 18-Hour Cold
THERMOS Stainless King 16 oz Tumbler for Hiking and Picnics, Vacuum Insulated 7-Hour Hot 18-Hour Cold
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Why you'll love it
- 7-hour heat retention eliminates mid-morning coffee reheating
- Leak-proof DRINKLOCK lid gives confidence tossing it in a bag or cup holder
- Sweat-proof exterior prevents wet rings on desks and ring-burn on hands
- Rugged 18/8 stainless steel holds up to drops, dents, and dishwasher cycles
- Heritage brand trust built since 1904 with a multi-color line (Matte Steel, Army Green, Rustic Red, Midnight Blue) to match personal style
- Built-in tea hook saves carrying a separate infuser for tea drinkers
Perfect for
- Hot coffee or tea that stays warm through a full morning commute
- Iced cold brew that remains cold through an 8-hour work shift
- Spill-free travel mug for road trips and long drives
- Loose-leaf tea brewing on the go using the built-in tea hook
- Camping or hiking companion that holds up to rugged conditions
There's a lot that goes into a Thermos product.
Superior insulation technology, long term durability, and seriously dependable features. But there's one thing built into every Thermos product that stands out even more: how much we care. Since 1904, we've cared about what goes into every Thermos container, choosing the highest quality and most innovative materials to create reusable (and really reliable) products. It's why generations of families still trust Thermos brand to keep their favorite food and drinks hot or cold throughout the day.
Vacuum Insulated - Keeps hot for 7 hours and keeps cold for 18 hours
No spills + no surprises. We care because you do, too.
Built-in portability. Gear that doesn't take a day off.
The Stainless King Collection
Don't Lose Steam.
Get the job done with the gear that doesn't take a day off. Hots stay Hot. Colds stay Cold. You stay focused on everything else.
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Product Information
STAYS HOT OR COLD: THERMOS vacuum insulation technology for maximum temperature retention of hot or cold beverages. Keeps your morning coffee or tea hot for up to 7 hours and iced drinks cold for up to 18 hours
EXTREMELY DURABLE: High quality 18/8 stainless steel construction is dependable any time of year for long treks or road trips – to the wilderness or across town
SWEAT-PROOF: Exterior stays cool to the touch with hot beverages and sweat-proof with cold. THERMOS brand mugs and tumblers are dishwasher safe, top rack recommended
LEAK-PROOF LID: DRINKLOCK sealing lid is leak-proof when closed for peace of mind. Features a built-in tea hook that holds tea bags or most loose leaf infusers. Lid design is easy to disassemble and clean
SINCE 1904: THERMOS brand products have been making everyday life better, every time. Hot stays hot. Cold stays cold. Food and drinks stay fresh. The little things go a long way, so do we
If you’re like us, you want your hot coffee to be hot for your whole commute and after getting through your inbox. Thanks to our high quality double-wall stainless steel construction, the STAINLESS KING Tumbler’s vacuum insulation is the best way to make sure your morning routine never loses steam. Keeps your morning coffee or tea hot for up to 7 hours and iced drinks cold for up to 18 hours. The DRINKLOCK sealing lid is leak-proof when closed for peace of mind. Features a built-in tea hook that holds tea bags or most loose leaf infusers. Exterior stays cool to the touch with hot beverages and sweat-proof with cold. THERMOS brand mugs and tumblers are dishwasher safe, top rack recommended.Recommended Uses For Product: Hot and Cold Drinks, Travel
Age Range Description: Adult
Model Name: Stainless King Travel Tumbler
Included Components: Travel Tumbler
Global Trade Identification Number: 00041205701156
Item Type Name: Stainless Steel Bottle
Item Height: 7.8 inches
Capacity: 473 Milliliters
Item Dimensions W x H: 3.3"W x 7.8"H
Item Weight: 4.8 ounces
Number of Items: 1
Base Diameter: 3.3 Inches
Additional Features: Alcohol-Free
Cap Type: Screw Cap
With Lid: Yes
Material Type: Stainless Steel
Product Care Instructions: Dishwasher Safe
Is the item dishwasher safe?: Yes
Is the item microwaveable?: No
Is Oven Safe: No
Color: Matte Steel
Theme: Food & Drink
Pattern: Tumbler
Frequently Asked Questions
Will the 18/8 stainless steel body hold up to drops on a campsite or trail?
Yes. The double-wall 18/8 stainless steel construction is built to absorb everyday drops, dents, and rough handling in outdoor settings like campsites, hiking trails, and roadside rest stops. It's the same rugged material trusted by THERMOS since 1904.
Can I use this travel tumbler on long road trips without leaks in the cup holder?
Absolutely. The DRINKLOCK leak-proof sealing lid is engineered to stay sealed even when tossed in a car cup holder, gym bag, or backpack, giving you full confidence during long drives and rough roads.
Does the double-wall vacuum insulation keep iced drinks cold through a full day of outdoor activity?
Yes. The vacuum-insulated body holds cold beverages at temperature for up to 18 hours, so an early-morning cold brew will still be cold when you finish a full day of hiking, picnicking, or patio lounging.
Is the exterior sweat-proof enough to keep condensation off my outdoor gear?
Yes. The double-wall vacuum design eliminates condensation on the outside of the tumbler, so it won't leave wet rings on picnic tables, tailgates, camping chairs, or any other surface you set it on.
Can I brew loose-leaf tea on a picnic using the built-in tea hook?
Yes. The built-in tea hook inside the lid lets you hang any standard loose-leaf tea bag or infuser directly in the tumbler, so you can brew a fresh cup outdoors without packing a separate infuser.
Is this tumbler good for hot coffee during early morning campsite setups?
Yes. The vacuum insulation keeps coffee hot for up to 7 hours, so a cup poured at sunrise stays warm through breakfast, tent setup, and the start of the trail.
What size travel tumbler fits best in a standard car cup holder for road trips?
The 16-ounce Stainless King tumbler is sized to fit standard car cup holders, making it a reliable road trip companion without tipping or sliding around.
Can I take this rugged tumbler on a hike without worrying about denting it?
Yes. The 18/8 stainless steel body is built to resist dents and dings from everyday outdoor use, including being packed in a backpack with gear, clipped to a pack, or set down on rocky surfaces.
How does this compare to a plastic travel mug for camping?
Unlike plastic mugs that can warp, retain flavors, and leak heat, the Stainless King's 18/8 stainless steel body is more durable, won't absorb odors, and the vacuum insulation keeps drinks hot or cold far longer than a typical plastic tumbler.
Will the finish scratch if I toss it in my camping cookware bag?
The powder-coated matte finish in Matte Steel, Army Green, Rustic Red, or Midnight Blue is designed for everyday use. Light contact with gear is normal, but the rugged coating holds up well to typical camping and travel conditions.
Is this a good replacement for a fragile glass tumbler at outdoor dinners?
Yes. The stainless steel body is a far more durable alternative to glass for patio and outdoor dining, so you get the same drinking experience without the risk of shattered glass on a deck, picnic table, or campsite.
Does the lid stay sealed if the tumbler tips over in a kayak or car?
Yes. The DRINKLOCK leak-proof sealing lid is designed to stay closed under normal jostling, tipping, and movement, so you can trust it on a kayak deck, in a moving vehicle, or on uneven ground.
Will hot drinks stay warm long enough for a full day of sightseeing outdoors?
Hot drinks stay at peak temperature for about 7 hours, which covers a full morning to early afternoon of outdoor activity. For all-day heat, you can pre-warm the tumbler with hot water first to extend retention further.
Is the 16 oz size enough hydration for a half-day hike?
For most half-day hikes, 16 ounces of water or electrolyte drink paired with a refill works well. If you prefer fewer refills, the vacuum insulation will keep your water cold for the full duration of the hike.
Can I put ice cubes in it for cold drinks on a hot day outside?
Yes. The wide-mouth opening fits standard ice cubes, and the 18-hour cold retention keeps ice from melting quickly even in direct outdoor heat.
Is the lid easy to clean after a day of outdoor use?
Yes. The lid is dishwasher safe on the top rack, and the stainless body is fully dishwasher safe as well, so cleanup after a long outdoor day is fast and simple.
How do I clean the THERMOS Stainless King tumbler?
The 18/8 stainless steel body is dishwasher safe on the top rack. The lid can also be washed on the top rack or hand-washed with warm soapy water. For best results, allow all parts to air dry fully before reassembling.
Can I put hot liquids in it right after brewing?
Yes. The double-wall vacuum insulation is designed for boiling-hot coffee and tea. For maximum heat retention, pre-warm the tumbler with hot water for a minute, then add your fresh brew.
How long does it actually keep drinks hot or cold?
The double-wall vacuum insulation is rated to keep drinks hot for up to 7 hours and cold for up to 18 hours, depending on the starting temperature of the drink, the ambient temperature, and how often the lid is opened.
Does the tumbler fit in a standard car cup holder?
Yes. The 16-ounce Stainless King is sized to fit most standard car cup holders, making it a reliable choice for daily commutes and road trips.
Can I use it with single-serve coffee machines?
Yes. The tumbler fits under most single-serve coffee brewers, so you can brew directly into it. Always check the clearance on your specific machine before brewing.
What is included in the box?
The box includes the 16-ounce Stainless King vacuum-insulated travel tumbler with the DRINKLOCK leak-proof lid and built-in tea hook. No additional accessories are required, and no batteries or chargers are needed.
Is it safe to use every day for years?
Yes. The 18/8 food-grade stainless steel interior is BPA-free, does not retain flavors, and is built for daily long-term use. The body is also rust-resistant and dishwasher safe for easy care.
Can the tumbler break or shatter if dropped?
Unlike glass or ceramic mugs, the 18/8 stainless steel body is designed to absorb drops and resist shattering. While extreme impacts can dent stainless steel, the tumbler will not crack or break into sharp pieces the way glass can.
What is the difference between a travel tumbler and a regular insulated bottle?
A travel tumbler is designed for upright desktop use with a wide-mouth opening, a spill-resistant lid, and a shape that fits cup holders. A traditional insulated bottle is taller, narrower, and typically sealed with a sport cap. Tumblers are better for coffee, tea, and desk use, while bottles are better for one-handed hydration on the move.
