

♻️ Drink smart, live bold — the flask that fuels your day and saves the ocean!
The Ocean Bottle Brew Flask 350ml is a premium insulated travel flask made from 67% recycled stainless steel, designed to keep drinks hot for 6 hours and cold for 18 hours. Featuring a 360° leak-proof lid and dishwasher-safe construction, it combines durability with convenience. Winner of the iF Design Award 2025 and The Telegraph’s Best Reusable Coffee Cup 2024, it supports sustainability by removing 11.4 kg of ocean plastic per bottle sold and comes with a 10-year warranty.






| ASIN | B0BQWJLMJB |
| Age Range Description | Adult |
| Age range (description) | Adult |
| Base Diameter | 6.4 Centimetres |
| Best Sellers Rank | 4,409 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 299 in Canteens & Water Bottles |
| Brand | Ocean Bottle |
| Brand Name | Ocean Bottle |
| Cap Type | Screw Cap |
| Capacity | 350 Millilitres |
| Colour | Sun Orange |
| Customer Reviews | 4.3 out of 5 stars 165 Reviews |
| EU Spare Part Availability Duration | 10 Years |
| Included Components | Bottle |
| Is the item dishwasher safe? | Yes |
| Is the item microwaveable? | No |
| Item Dimensions W x H | 6.4W x 16.8H centimetres |
| Item Type Name | water bottle |
| Item Weight | 320 Grams |
| Item height | 19.6 centimetres |
| Manufacturer | Ocean Bottle |
| Material Type | Stainless Steel |
| Model Name | Flask |
| Number of Items | 1 |
| Pattern | Solid |
| Product Care Instructions | Dishwasher safe |
| Recommended Uses For Product | Drinks |
| Recommended uses for product | Drinks |
| Special Features | Insulated, dishwasher safe, double wall, leak-proof insulated, practical |
| Special feature | Insulated, dishwasher safe, double wall , leak-proof insulated, practical |
| Theme | Sport |
| Unit Count | 1.0 count |
| With Lid | Yes |
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.
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.
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.
L**S
Fantastic Purchase
Excellent quality - easy to drink from, and keeps contents hot for hours. The icing on the cake is helping the environment too.
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.
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.
J**V
Top pick by Which Magazine and a top pick for me
The search has been long for a genuinely spill proof travel coffee mug that is also not too bulky. This one fits the bill. The simple mechanism prevents spills even when turned upside down and its got a lovely clean design that's not too bulky. It keeps my coffee warm and importantly fits in the slightly smaller than usual coffee cup holders in my car. If I have a gripe its only that the drink flow is quite slow, but it's not something that really bothers me. I'd happily recommend it.
L**A
Looks good and is good for the environment
Smaller than I imagined but fits a regular coffee perfectly. Also, doesn't take up much room in my bag when I’m out and about. Very easy to drink from the lid without spillage. Cup is leakproof and fits in my cup holder in the car. Love the bright orange colour. Have had a few compliments on my cup from coffee shop staff. I would definitely recommend getting this one. As an added bonus, for those who care about sustainability, the app gives you an update on how much your purchase and continued use helps free our oceans of plastic.
Trustpilot
2 months ago
2 weeks ago