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💦 Stay cool, stay hot, stay ahead with ThermoFlask!
The ThermoFlask 18 oz insulated water bottle features double-wall vacuum insulation that keeps beverages cold for 24 hours or hot for 12 hours. Crafted from BPA-free stainless steel, it offers durability without flavor transfer or sweating. Equipped with two versatile lids—a leak-proof chug lid and an enhanced straw lid—this bottle supports easy, one-handed hydration. Its compact size fits most cup holders and backpacks, making it perfect for active professionals seeking sustainable, stylish hydration solutions.
































| ASIN | B07RWKM7L1 |
| Additional Features | Double Wall, Leakproof, Vacuum Insulated |
| Age Range Description | Adult |
| Age range (description) | Adult |
| Base Diameter | 2.91 Inches |
| Best Sellers Rank | #27,516 in Sporting Goods ( See Top 100 in Sporting Goods ) #1,391 in Sports Water Bottles |
| Brand | ThermoFlask |
| Brand Name | ThermoFlask |
| Cap Type | Straw Cap |
| Capacity | 18 Fluid ounces |
| Color | Black |
| Colour | Black |
| Customer Reviews | 4.7 out of 5 stars 51,468 Reviews |
| Global Trade Identification Number | 00885395500553 |
| Included Components | Water Bottle With Lid |
| Is Oven Safe | No |
| Is the item dishwasher safe? | Yes |
| Is the item microwaveable? | No |
| Item Dimensions W x H | 23H centimeters |
| Item Type Name | Water Bottle with Two Lids |
| Item Weight | 0.69 Pounds |
| Manufacturer | Thermoflask |
| Material Type | Stainless Steel |
| Model Name | Insulated Stainless Steel |
| Number of Items | 1 |
| Product Care Instructions | Hand Wash Only |
| Recommended Uses For Product | Water |
| Recommended uses for product | Water |
| Special features | Double Wall , Leakproof, Vacuum Insulated |
| Theme | Sport |
| UPC | 885395500553 |
| With Lid | Yes |
A**A
You must buy if you are looking for great partners for your daughter in school
Great for school day. Every great item. It comes with spare straws and another lids for replacement.
S**H
Keeps drink cold for longtime
Keeps water cold for long time even when i keep it in the hot car for 6 hours
F**D
Quality stuff
The bottle was as described and delivered before the promised time .
M**T
The perfect water bottle!
Water stays cold for long... very high quality product..
V**I
Missing lid
Received my order last week the quality is amazing but they did not include the 2nd lid which I personally prefer. They have easily refunded my money back and I am ordering once again hoping I receive the 2nd lid this time.
B**S
Perfect functionality, all the features I needed and a nice look
It works great. I went with the 40z to avoid having to refill often. 4 large ice cubes keeps the water cold for about 6-8 hours. Ice cubes left in it empty overnight are still frozen by morning. It's not the most extreme insulation on the market but it's a good compromise with being thinner/lighter which makes it perfect for daily use, filled once or twice throughout the day. A real upside to this design is the 2 tops it comes with. Both are high quality and clever design, unlike many cheaper canteens for sale. The straw spout is fully capped with a softer material that's nice to drink from. But most useful is the handle design. You can comfortably drink and carry from the narrower cap, even when it's completely full, without having to ever touch the wider body. So you've got great control over the bottle no matter what you're doing. It also gives you leverage to open and tighten and the cap so there's never any leaks. This is perfect for people with smaller hands, though the keyhole shaped handle will fit any size hands. It's VERY clever and much more functional than the pivoting strap design on most other canteens. The caps were the big reason I chose this over others and it really does make a difference when I use it every day. It's the main reason I want to leave a review, since some designer made a pretty noticeable improvement with that clever trick. For someone else that complained about the noise, the straw has a pretty high flow rate which is usually nice. To avoid any noise you just have to drink more slowly, like you're sipping through a regular straw. But the second included cap is general purpose, and has a latch mark on the swing-back cap so it won't flop forward while you're drinking or pouring.
N**A
Super qualidade
Amei, a garrafa veio bem embalada e dentro do prazo, ainda não fiz 24h de experiência com ela, mas meu irmão tem a mesma marca de garrafa e verifiquei que é muito boa, mantém a temperatura do líquido interna, e não vaza (mesmo com o bico de canudo).
F**B
Perfect everyday bottle
I’ve been using this bottle everyday and it’s one of the best water bottles I’ve owned. The insulation keeps my water ice-cold for hours and the stainless steel feels sturdy without being too heavy. I love having both lid options: the chug is great for quick sips on hikes, and the straw lid is awesome at my desk or during workouts. Both lids are truly leak-proof, and everything has held up well in the dishwasher, which makes cleanup super easy. The large 64oz size means fewer refills, which has helped me stay on track with my hydration goals. If you want a rugged, reliable, cold-keeping bottle that works for travel, gym, office, or outdoor fun, this thermoflask hits the mark.
J**E
amazing water bottle
i’ve used this bottle for years i absolutely love it!! keeps water cold for a long time
M**L
Muy buen termo!!
Lo compré hace 2 años y sigue funcionando perfecto, enfría muy bien y mantiene la temperatura todo el día. Es algo pesada cuando está llena pero al ser de 2L es entendible
Trustpilot
1 week ago
1 month ago