Anti-Leak Seal
Dissassembles for easy cleaning
Recycled Stainless Steel
10 Years Warranty

Brew Flask 350ml

The small insulated flask with sustainability at its core - coffee on the go never tasted so good...

Ocean Bottle Brew Flask: Your Go-To Thermal Insulated Coffee Flask

Looking for an eco conscious choice for enjoying hot and cold drinks on the go? We call it a Brew Flask and just like our original reusable stainless steel water bottle every purchase directly contributes to the prevention of plastic reaching our ocean.

The Brew Flask is a leak proof, vacuum insulated thermal coffee flask with a classic stainless steel design. A statement of sustainability, it's crafted with recycled materials and designed to accompany you on every adventure.

  • More Than Just a Reusable Cup

    Our Brew Flask differs from everyday reusable coffee cups; it's a commitment to a cleaner ocean with every sip you take. Available in a spectrum of vibrant colours to complement your personal style and boasting a design that echoes our award-winning durable metal water bottles, this dishwasher safe, insulated coffee flask isn’t just a sustainable choice for hot (and cold) drinks on the go - it’s a stylish one too.

    Whilst our travel mugs and tumblers offer lightweight convenience for keeping hot drinks hot and cold drinks cold on your morning commute, the Brew Flask is a more heavy duty traditional flask for coffee, tea, hot chocolate or even soup. Its 350ml capacity is the same as in our travel mugs and tumblers but with the Brew Flask there's no need to worry about spills thanks to its cleverly designed leakproof 360° lid.

  • Sip Sustainably with Our Reusable Flasks

    Each Brew Flask sold directly funds the collection of 1,000 ocean bound plastic bottles, reminding you of your contribution and commitment to the fight against ocean plastic everywhere you take it. If you’re on the hunt for a sustainable flask that elevates your green credentials while offering unmatched quality and style, the Brew Flask is your perfect match.

  • fighting ocean-bound plastic Brew Flask
  • Reusable Coffee Cup - The Ocean Bottle Brew Flask
  • 6 Hours Hot Insulation

    Fill up your Ocean Bottle Brew Flask with a brew of your choosing and the vacuum insulation will keep drinks hot for up to 6 hours, even on the coldest of days. So if you’re exploring options for wild swimming in winter, you’ll have time to scout out your favourite locations, go for a dip and then sip on your drink to warm you up.

  • Sustainability at its Core

    Not only is your flask contributing to the prevention of plastic pollution in our ocean, but its eco-friendly design means almost every element is recyclable too. With a ten year warranty this is a product you can expect to go the distance. However, when it sadly does become time to part ways, just check our Brew Flask recycling guide.

  • Keeping Your Drinks Cool

    That insulation works both ways! Bring your Brew to the beach filled with iced coffee and the flask will keep it cool for up to 18 hours. Take a look at our post on how vacuum insulated bottles work to understand the science behind keeping your drinks toasty or chilled.

  • The Versatile Insulated Flask

    Its small and sleek yet light design is ideal for any occasion and the colour choice is up to you. For work or play, take it to the office or to the gym. Plus, the modular design means you can even switch out different lids to suit your mood each day! The perfect blend of performance, durability and style.

  • Engrave Your Brew Flask

    From staying hydrated on the go to ensuring you're never without your go-to hot or cold drink, your Ocean Bottle is there for you  — and to make it even more personal, you can get your bottle customised with your very own engraving. 

    So whether it’s about making sure your barista gets your name right on the first try or surprising someone with an extra-special gift, our engraving service means you’ll never be lost for words. 

    Additionally we can customise your brew flask with your corporate logo for gifting and events, just take a look at our branded coffee flasks page for more info.