--- product_id: 508492464 title: "Ocean Bottle Brew Flask 350ml | Insulated Travel Flask for Hot & Cold Drinks | Recycled Stainless Steel | Sustainable, Eco Friendly Gift (Obsidian Black)" brand: "ocean bottle" price: "$88.74" currency: USD in_stock: true category: "Ocean Bottle" url: https://www.desertcart.us/products/508492464-ocean-bottle-brew-flask-350ml-insulated-travel-flask-for-hot store_origin: US region: United States of America --- # Keeps hot for 6 hours 67% recycled stainless steel Keeps cold for 18 hours Ocean Bottle Brew Flask 350ml | Insulated Travel Flask for Hot & Cold Drinks | Recycled Stainless Steel | Sustainable, Eco Friendly Gift (Obsidian Black) **Brand:** ocean bottle **Price:** $88.74 **Availability:** ✅ In Stock ## Summary > ♻️ Stay refreshed, stay responsible — the flask that fuels your day and saves the ocean! ## Quick Answers - **What is this?** Ocean Bottle Brew Flask 350ml | Insulated Travel Flask for Hot & Cold Drinks | Recycled Stainless Steel | Sustainable, Eco Friendly Gift (Obsidian Black) by ocean bottle - **How much does it cost?** $88.74 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/508492464-ocean-bottle-brew-flask-350ml-insulated-travel-flask-for-hot) ## Best For - ocean bottle enthusiasts ## Why This Product - Trusted ocean bottle brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Temperature Mastery:** Enjoy your coffee piping hot for 6 hours or your iced drinks refreshingly cold for 18 hours—perfect for long workdays or weekend escapes. - • **Award-Winning Impact:** Backed by a 10-year warranty and recognized by The Telegraph and iF Design Award 2025, every purchase helps remove 11.4 kg of ocean plastic. - • **Zero-Spill Confidence:** 100% leak-proof 360° lid means no mess, no stress—toss it in your bag and go. - • **Effortless Clean Routine:** Dishwasher safe and easy to rinse, making your sustainable habit seamless and hassle-free. - • **Sip Sustainably, Stay Stylish:** Crafted from 67% recycled stainless steel, this flask is your eco-conscious companion for every adventure. ## Overview The Ocean Bottle Brew Flask 350ml is a sleek, insulated travel flask made from 67% recycled stainless steel. It keeps beverages hot for 6 hours and cold for 18 hours with a 100% leak-proof lid. Dishwasher safe and backed by a 10-year warranty, this award-winning flask supports ocean plastic cleanup by collecting 11.4 kg of plastic per bottle sold. ## Description Durable, eco-friendly bottle keeps drinks hot for 6 hours and cold for 18 hours. Made from 67% recycled materials with a 100% leakproof lid and easy-clean design. ## Features - KEEPS HOT FOR 6 HOURS & COLD FOR 18 HOURS – Coffee stays piping hot, iced drinks refreshingly cold and keeps ice frozen for over 24 hours. - BUILT TO LAST FOR YEARS – Made from 67% recycled materials, fully repairable and recyclable. Voted the Gadget Show’s top on-the-go drinking accessory and won the iF Design Award 2025. - 100% LEAK-PROOF – Our 360° drinking lid seals tight, so you can toss it in your bag with total confidence. - EASY TO CLEAN – Rinse and go, or put it in the dishwasher. Quick to clean, easy to reuse — making your sustainable habit simple to stick to. - AWARD-WINNING & MAKING REAL IMPACT – Loved by thousands and voted The Telegraph’s Best Reusable Coffee Cup 2024. Backed by a 10-year warranty with free replacement parts. For every Brew sold, we collect 11.4 kg of plastic — as of summer 2025, that total is 22.5 million kg. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BQWH2CYM | | Age Range Description | Adult | | Base Diameter | 8 Centimetres | | Best Sellers Rank | 3,053 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 195 in Canteens & Water Bottles | | Brand Name | Ocean Bottle | | Cap Type | Screw Cap | | Capacity | 350 ml | | Colour | Obsidian Black | | Country Of Origin | China | | Customer Reviews | 4.4 4.4 out of 5 stars (207) | | EU Spare Part Availability Duration | 10 Years | | Included Components | Bottle | | Is Oven Safe | No | | Is the item dishwasher safe? | Yes | | Is the item microwaveable? | No | | Item Dimensions W x H | 8W x 19.6H centimetres | | Item Type Name | Water bottle | | Item Weight | 12 Ounces | | Manufacturer | Ocean Bottle | | Material Type | Stainless Steel | | Model Name | Flask | | Number of Items | 1 | | Pattern | Solid | | Product Care Instructions | Hand Wash Only | | Recommended Uses For Product | Water | | Special Features | Insulated, dishwasher safe, double wall, leak-proof, insulated, leak-proof | | Theme | Sport | | Unit Count | 1.0 count | | With Lid | Yes | ## Product Details - **Brand:** Ocean Bottle - **Capacity:** 350 ml - **Colour:** Obsidian Black - **Recommended uses for product:** Water - **Special feature:** Insulated, dishwasher safe, double wall, leak-proof, insulated, leak-proof ## Images ![Ocean Bottle Brew Flask 350ml | Insulated Travel Flask for Hot & Cold Drinks | Recycled Stainless Steel | Sustainable, Eco Friendly Gift (Obsidian Black) - Image 1](https://m.media-amazon.com/images/I/61I5g0OOdpL.jpg) ![Ocean Bottle Brew Flask 350ml | Insulated Travel Flask for Hot & Cold Drinks | Recycled Stainless Steel | Sustainable, Eco Friendly Gift (Obsidian Black) - Image 2](https://m.media-amazon.com/images/I/21oR2BrieDL.jpg) ![Ocean Bottle Brew Flask 350ml | Insulated Travel Flask for Hot & Cold Drinks | Recycled Stainless Steel | Sustainable, Eco Friendly Gift (Obsidian Black) - Image 3](https://m.media-amazon.com/images/I/31orapEvYrL.jpg) ![Ocean Bottle Brew Flask 350ml | Insulated Travel Flask for Hot & Cold Drinks | Recycled Stainless Steel | Sustainable, Eco Friendly Gift (Obsidian Black) - Image 4](https://m.media-amazon.com/images/I/41ayOXWZCrL.jpg) ![Ocean Bottle Brew Flask 350ml | Insulated Travel Flask for Hot & Cold Drinks | Recycled Stainless Steel | Sustainable, Eco Friendly Gift (Obsidian Black) - Image 5](https://m.media-amazon.com/images/I/417LrUwzt0L.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: What is the NFC function??** A: Thank you for the great question! Each Ocean Bottle is equipped with an NFC chip at its base. NFC is the same harmless technology which you will find in contactless payment cards, hotel room keys, office badges etc. We are building a platform which will enable you to fund more plastic collection impact when you tap your Ocean Bottle at a partner location around you. Today if you tap your Ocean Bottle onto an NFC activated smartphone, it will lead you to a webapp where you can register your Ocean Bottle to your name and find refill locations around you. **Q: What is the diameter of the bottom of bottle please? I need to check it fits in my car bottle holder. Not all ‘standard’ bottles do.** A: The diameter of the base is 68mm (6.8cm) **Q: How many hrs keep cold and hot? Basic details missing in the description** A: Hi Andrew, Thanks for asking! The bottle can keep the water cold for up to 18 hours. And it will keep the liquid hot for up to 9 hours (it should hold water above 40 degrees after 9 hours). Best regards, Ocean Bottle Team **Q: Is the capacity 500 ml to the larger opening, or 500 ml to the top opening?** A: Hi Lavinia, Thanks for asking! The capacity of the entire bottle to the top opening is 500 ml, metal flask volume is 450 ml. Best regards, Ocean Bottle Team ## Frequently Bought Together - Ocean Bottle - Recycled Stainless Steel Brew Flask - Eco-Friendly & Reusable Bottle - Obsidian Black - 12 oz - Owala FreeSip Insulated Stainless Steel Water Bottle with Straw for Sports and Travel, BPA-Free, 24-oz, Boneyard - TRIPLE TREE 34 OZ Uninsulated Single Walled Stainless Steel Sports Water Bottle 18/8 Food Grade for Cyclists, Runners, Hikers, Beach Goers, Picnics, Camping - BPA Free --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/508492464-ocean-bottle-brew-flask-350ml-insulated-travel-flask-for-hot](https://www.desertcart.us/products/508492464-ocean-bottle-brew-flask-350ml-insulated-travel-flask-for-hot) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-09-16*