









♻️ Elevate your daily brew with purpose and style!
The Ocean Bottle Brew Flask 350ml is a sleek, insulated travel flask made from 67% recycled stainless steel, designed to keep beverages hot for 6 hours and cold for 18 hours. Featuring a 100% leak-proof 360° lid and dishwasher-safe construction, it combines durability with easy maintenance. Winner of the iF Design Award 2025 and The Telegraph’s Best Reusable Coffee Cup 2024, it supports ocean plastic cleanup by removing 11.4 kg of plastic per bottle sold, backed by a 10-year warranty with free replacement parts.





| ASIN | B0BQWHC6TV |
| Best Sellers Rank | 11,875 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 560 in Canteens & Water Bottles |
| Brand | Ocean Bottle |
| Capacity | 350 Millilitres |
| Colour | Rock Grey |
| Customer Reviews | 4.4 4.4 out of 5 stars (174) |
| Date First Available | 22 Dec. 2022 |
| Item Weight | 320 g |
| Material | Stainless Steel |
| Model Number | 24OB00 |
| Product Dimensions | 8 x 8 x 19.6 cm; 320 g |
| Special Features | Insulated, dishwasher safe, double wall, leak-proof, insulated, leak-proof |
J**E
Yeti & Thermos are no match!
Moved over Thermos Stainless King & Yeti Rambler. This Ocean Bottle Drinking vessel is better than both. I know because my wife & I have had both and returned both. Ocean Bottle keeps drinks hot for 6 hours. I know because we've tested. The drinking from these Ocean cups is easy and clean. No mess, just good, easy supping. The turn tops to lock keep drinks inside with no drips or leaks. And the tops come apart in two bits for deeper cleaning. These aren't as rugged as the Yeti Rambler but they are far superior in terms of retaining heat and for overall usage. The yeti kept our coffees hot for 2 hours tops. The Thermos was better at around 4 hours but drinking from them was awful and awkward. I'm not sure what the low rating reviewers are on with their poor reviews of these Ocean Bottle vessels. They are superb, worth the money and possibly the best travel cups for coffee on the market.
S**N
Love it
Fantastic item. Just the right size for my hands . It keeps my drinks hot for hours and has been totally leak proof in my bag. Love you can change the look with different colour lids
P**C
Still perfect 9 months since purchase.
Keeps drinks hot for a good 6 hours (maybe longer, I've not tested) even when the outside of the bottle is really cold to the touch. It hasn't leaked at all, so perfect to put into my bag or lay down. Used everyday for coffee since my 1st purchase back in January (9months). The brew flask lid (the only lid i've tried) is good to drink from unlike many flask / reusable bottles. Dishwasher safe and hasn't faded in colour. Great fit for my cars cup holders.
R**Y
AMAZED how hot & fresh my tea stays for hours in this!
Very pleased with this! It looks rather small but holds exactly the same as my favourite china mug so it’s obviously more capacious than it looks. I particularly like that I can use the top as a little cup - very useful as I was stunned by just how hot this little Ocean travel cup keeps my tea! It’s still scalding hot hours later but I can pour some into the top to drink as that cools quicker.
L**Y
Leak proof but small
I tested this morning (on my bike) where it no doubt too a battering and it didn’t leak !! The coffee was still warm. However, it is a small size and the circumference means drying with a tea towel is difficult.
S**T
Drink is hot for hours.
Bought for my wife’s travels to and from work. Excellent t quality. No leakage, lid can be turned to allow drink, then further turn to remove to allow cleaning at the right time. First time using be careful as both the wife and I nearly burn ourselves with the drink. Drink is hot in the morning and can still be after lunch. Size - holds a cup full and plenty, but other sizes are available. Great color options. I and my wife have one, a very welcome addition to our commute or outdoor trek. Highly recommend as not seen a cup as good.
A**R
Do not buy - lid quality unacceptable
Sadly this bottle is very very poor quality. After the 3rd or 4th use (for tea) it’s developed a very substantial leak from the mouthpiece (when fully closed) rendering it completely unsafe to use. It literally pokes out. Return window closed after 4 weeks, and as I don’t use travels mugs much; the fault developed after the window so can’t be replaced. It is a very expensive option compared to other products. Expected a lot more…..would strongly recommend looking for alternative products.
K**2
Great travel flask mug
Loving this flask. Apart from the eco factor it keeps your drinks hot, seals completely in my bag and 360 degree drinking means no looking for the hole when driving/walking/etc.
E**.
En general estoy satisfecho sin embargo, tengo que decir que debido a su diseño puede a veces derramarse sino lo armas o ajustas correctamente.
N**.
My second purchase. First one leaked, but it got run through dishwasher often. Hand washing this one and zero issues. My favorite bottle and I have quite a few - this one keeps my cuppa piping hot! Plus I love this color.
N**.
Before purchasing this product, I read somewhere that this thermos does its job too well. Well, it's absolutely true. I prepare my tea at home about 6:15am and at 8:30am when I am finally ready for my first cuppa, it's HOT, like perfect HOT. I point this out because I actually have two "other" thermoses I carry, and this one is by far the BEST. If you want hots to stay hot, this is the RIGHT one for you.
K**E
Love this bottle, but it stained from foods on plates when washed in the dishwasher which was really disappointing. Despite saying its dishwasher safe, I would avoid!
L**A
Great for hot and cold beverages. Keeps beverages hot and cold. Doesn’t leak in any position! Great purchase!!’
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