

🔥 Stay fueled, stay unstoppable with Thermos Stainless King!
The Thermos Stainless King 1.2L Multi-Purpose Flask combines premium vacuum insulation with durable stainless steel construction to keep beverages hot for 24 hours or cold for 48 hours. Featuring a leakproof twist-and-pour stopper and an insulated built-in serving cup, this BPA-free flask is designed for professionals and adventurers alike who demand reliable temperature retention and rugged portability. Backed by a 50-year warranty, it’s the ultimate companion for coffee, tea, or soup on the go.







| ASIN | B077GZJ7JR |
| Age Range Description | Adult |
| Age range (description) | Adult |
| Base Diameter | 10.5 Centimetres |
| Best Sellers Rank | 347 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 4 in Insulated Bottles |
| Brand | Thermos |
| Brand Name | Thermos |
| Cap Type | Screw Cap |
| Capacity | 1.2 litres |
| Colour | Duck Egg |
| Country Of Origin | China |
| Customer Reviews | 4.7 out of 5 stars 24,002 Reviews |
| EU Spare Part Availability Duration | 5 Years |
| Global Trade Identification Number | 05010576702982 |
| Included Components | Insulated stainless steel serving cup |
| Is Oven Safe | No |
| Is the item dishwasher safe? | No |
| Is the item microwaveable? | No |
| Item Dimensions W x H | 11.8W x 31.3H centimetres |
| Item Type Name | Flask |
| Item Weight | 1.19 Pounds |
| Item height | 31.3 centimetres |
| Manufacturer | UK Thermos Ltd |
| Manufacturer Warranty Description | 50 year warranty. |
| Material Type | Plastic, Silicone, Stainless Steel |
| Model Name | Stainless King |
| Number of Items | 1 |
| Pattern | Solid |
| Product Care Instructions | Hand Wash Only |
| Recommended Uses For Product | Coffee, Tea, Water |
| Recommended uses for product | Coffee, Tea, Water |
| Special Features | BPA Free, Cold 48 Hours, Durable Stainless Steel, Hot 24 Hours, Leakproof, Vacuum Insulated |
| Special feature | BPA Free, Cold 48 Hours, Durable Stainless Steel, Hot 24 Hours, Leakproof, Vacuum Insulated |
| Theme | Camping, Travel |
| With Lid | Yes |
J**E
Can’t go wrong with this!
Great flask, own quite a few different sizes in this range and my review applies to them all. Cant fault these I feel they are far superior to the glass vacuum-inner thermos range which has exploded on us previously while in a bag on a bumpy mountain bike ride. Also I don’t see much difference to the Stanley I have except for price. Collapsing handle means it fits into bags and takes minimal space. 1.2l capacity is great for a hike as not too heavy but enough tea/ coffee for myself and 2 teens. Easy to use, keeps liquids hot for more than the listed 12hrs. Caution needed for first few sips as drinks will pour piping hot! Haven’t used for cold drinks. Metal cup can be hot to hold but we like this as it warms cold hands in cold Scottish weather. I prefer to carry milk separately and pour on drinking as it tends to taste and smell odd if drinking your brew after 4/5 hours of it being in the flask. Also good for hot soup, for us 3, on the go. Colours are pretty accurate to what’s shown in listing and hold up well to washing, etc although we never put any of ours in the dishwasher. I did swap this for a different colour as the red was too red according to teen using it for DofE - went for army green instead which is lovely! And classic black for a friend. Very good value for money at full price but more so if you get it on discount
H**E
Good
Excellent quality flask. I was impressed that my tea was still hot 24 hours later. Definitely worth the price. Recommended!
C**Y
Excellent flask
I bought this flask after looking at lots of reviews. My husband is a postman and out in all weathers, so this is ideal for keeping hot drinks warm in the winter between postal deliveries and he will be able to use it on the summer to keep water cold. He certainly gives the flask top marks as it is very durable aswell.
M**4
Nice
Nice flask. Keeps the heat well. Good seal. Handle is noisy and clunky. Heavy. Only thing I don’t like is it’s not great for a steady straight stream, ends up splishysplashy half the time which isn’t great if you are trying to pour into something like a hot water bottle or something that isn’t a big cup opening
E**E
A lovely product
This flask looks good and keeps my drinks hot for a very long time
S**Y
Great
Nice and big. Keeps hit drinks hot all day. Easy to clean.
D**N
Quite good worth the money
Well worth the money I use it at college and it keeps boiling hot all day and it’s leak proof and easy to open and keeps my yorkshire tea biscuit flavoured tea nice and easy to deal with all day: Top tip: Fill flask half way with hot boiling water and seal lid Refill kettle fully and boil it Wait a couple minutes while the kettle is boiling then pour out the water in the flask (the half filled into the sink) and then pour in the freshly boiled water to the top below the o ring line and then reseal.
L**A
Great product
This has done wonders for making baby’s bottles in day/ night highly recommend keeps hot for over 12 hours
Trustpilot
3 weeks ago
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