--- product_id: 696950241 title: "Thermos Matt Black Ultimate Drinks Flask (900ml) 24h Hot | 24h Cold | Adults/Mens stainless steel metal thermal insulated leakproof drinks water bottle with coffee cup/mug lid for travel, camping" brand: "thermos" price: "$100.83" currency: USD in_stock: true reviews_count: 13 url: https://www.desertcart.us/products/696950241-thermos-matt-black-ultimate-drinks-flask-900ml-24h-hot-24h store_origin: US region: United States of America --- # 24h Hot Retention 24h Cold Retention Durable Stainless Steel Build Thermos Matt Black Ultimate Drinks Flask (900ml) 24h Hot | 24h Cold | Adults/Mens stainless steel metal thermal insulated leakproof drinks water bottle with coffee cup/mug lid for travel, camping **Brand:** thermos **Price:** $100.83 **Availability:** ✅ In Stock ## Summary > 🔥 Stay hot, stay cool, stay unstoppable. 🏞️ ## Quick Answers - **What is this?** Thermos Matt Black Ultimate Drinks Flask (900ml) 24h Hot | 24h Cold | Adults/Mens stainless steel metal thermal insulated leakproof drinks water bottle with coffee cup/mug lid for travel, camping by thermos - **How much does it cost?** $100.83 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/696950241-thermos-matt-black-ultimate-drinks-flask-900ml-24h-hot-24h) ## Best For - thermos enthusiasts ## Why This Product - Trusted thermos brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rugged Yet Refined:** Matt black stainless steel with silicone guards means your flask survives every adventure in style. - • **Adventure-Ready Capacity:** Generous 900ml volume fuels your longest hikes, commutes, or workdays without weighing you down. - • **Comfort Grip, Zero Sweat:** Double-wall insulation keeps the exterior cool and condensation-free for a confident, comfortable hold. - • **Smart Spill-Proof Design:** Two-part stopper and wide mouth combine for controlled pouring and effortless cleaning on the go. - • **All-Day Temperature Mastery:** Keeps your drinks piping hot or ice-cold for a full 24 hours—no compromises, no refills. ## Overview The Thermos Matt Black Ultimate Drinks Flask is a premium 900ml insulated bottle engineered with advanced vacuum technology to maintain your beverage temperature for 24 hours hot or cold. Crafted from durable stainless steel with protective silicone rings, it offers rugged durability and a sleek matte finish. Featuring a spill-proof two-part stopper and wide mouth for easy filling and cleaning, this lightweight flask is perfect for professionals and adventurers seeking reliable hydration on the move. ## Description Durable, lightweight and reusable, our insulated bottles are ideal for work, workouts, or all-day hiking. Premium insulated flasks designed to keep drinks hot for hours. Perfect for solo adventures or family picnics. Our reusable travel mugs and tumbles are insulated to keep your drinks hot or cold while you're on the move. Featuring a wide-mouth design for easy cleaning and eating, plus an integrated spoon for convenience anywhere you go. ## Features - Temperature Control - Advanced vacuum insulation maintains drinks steaming hot or refreshingly cold for 24 hours, letting you enjoy your beverage at the ideal temperature all day long - Rugged Design - Robust stainless steel construction with protective silicone rings withstands drops, bumps, and outdoor adventures while preventing dents and scratches - Comfort Grip - Double-wall insulation ensures the exterior stays cool with hot drinks and condensation-free with cold beverages, providing comfortable handling in any weather - Smart Pour System - Two-part stopper design controls liquid flow and prevents spills, while the wide mouth opening makes filling and cleaning quick and simple - Outdoor Ready - 900ml capacity holds enough liquid for extended adventures, while the lightweight yet durable construction makes it ideal for hiking and camping trips ## Technical Specifications | Specification | Value | |---------------|-------| | Age Range Description | Adult | | Asin | B0DSG6CYTZ | | Best Sellers Rank | 7,257 in Home & Kitchen (See Top 100 in Home & Kitchen) 81 in Insulated Bottles | | Brand Name | Thermos | | Cap Type | Screw Cap | | Capacity | 900 ml | | Colour | Matt Black | | Country Of Origin | Malaysia | | Customer Reviews | 4.7 4.7 out of 5 stars (3,382) 4.7 out of 5 stars | | Included Components | Durable Stainless Steel Flask, Protective Silicone Rings, Serving Cup Lid, Two Part Pouring Stopper | | Is Oven Safe | No | | Is The Item Dishwasher Safe | No | | Is The Item Microwaveable | No | | Item Dimensions W X H | 8.2W x 29.7H centimetres | | Item Type Name | Flask | | Item Weight | 392 Grams | | Manufacturer | Thermos | | Material Type | Polypropylene, Silicone, Stainless Steel | | Model Name | FFX900 | | Number Of Items | 1 | | Product Care Instructions | Hand Wash Only | | Recommended Uses For Product | Coffee, Soup, Tea, Water | | Special Features | Cold 24 Hours, Hot 24 Hours | | Theme | Adventure, Indoor, Outdoor, Travel | | Unit Count | 1.0 count | | With Lid | Yes | ## Product Details - **Brand:** Thermos - **Capacity:** 900 Millilitres - **Colour:** Matt Black - **Recommended uses for product:** Coffee, Soup, Tea, Water - **Special feature:** Cold 24 Hours, Hot 24 Hours ## Images ![Thermos Matt Black Ultimate Drinks Flask (900ml) 24h Hot | 24h Cold | Adults/Mens stainless steel metal thermal insulated leakproof drinks water bottle with coffee cup/mug lid for travel, camping - Image 1](https://m.media-amazon.com/images/I/51SDJOl137L.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Thermos Ultimate beyond compare and a shrewd long term investment an *by on Reviewed in the United Kingdom 21 October 2025* The Thermos Ultiimate drinks flask unique feature is in its ability to keep drinks scalding hot for 18 hours and hot for 24 hours. I purchased 2 of the smaller size (previous model) one for me and one for my wife about 15 or more years ago and they have never failed to impress on how hot they kept our tea or coffee. They are quite tough and resilient . Unfortunately I dropped mine once too many times , but without blinking instinctively reordered a new one within a heartbeat.Ooops, my eagerness caused me to order the larger 900ml size in error. I will keep it for hot water when we do go out together, as I drink coffee and she drinks Tea.I have already ordered the smaller size ( currently available from TK Max at under £20 and ordered on line for collection tomorrow I can’t wait).Originally I used it for work knowing wherever I was driving to around the country I had a hot coffee to enjoy and even if half drunk a very warm coffee at the end of the day before I started to drive home. I found the smaller size quite adequate to last me throughout the day providing 2 cups of coffee throughout the day.Life without one is almost inconceivable, that is how impressive the Thermos Ultimate flask is.I will keep the larger 900ml size and not return it as even though it is too large for my regular use as I’m sure it will come in useful on the odd but critical situation e.g. Overnight keeping water hot for the morning on a Trip or if I’m in bed unwell a hot drink to hand all day or overnight. It will also be great for cold drinks if going on a picnic or to the seaside with family .It may seem expensive but it truly is a long term investment. 20 out of 10. ### ⭐⭐⭐⭐⭐ Outstanding Flask for All Adventures *by on Reviewed in the United Kingdom 17 July 2024* I recently purchased the Thermos Ultimate Series Flask in Charcoal, 900 ml, and it has exceeded my expectations in every way. Here’s why it deserves a full 5-star rating:Pros:Exceptional Insulation: This flask keeps my drinks hot for an impressively long time and cold for way longer than 24 hours. Whether I'm out hiking, camping, or just on a long road trip, my beverages stay at the perfect temperature throughout the day and beyond.Durable Build: The build quality is impressive. Made with high-quality stainless steel, it’s robust and can withstand the rigors of outdoor adventures. The charcoal color also gives it a sleek, stylish look.Leak-Proof: The flask is completely leak-proof. I’ve carried it in my backpack, and not a single drop has spilled, which is a huge plus for me.Easy to Use: The lid doubles as a cup, which is very convenient. The pouring mechanism works smoothly, and the wide mouth makes it easy to fill and clean.Perfect Size: At 900 ml, it’s the ideal size for carrying a substantial amount of beverage without being too bulky. It fits well in my backpack and is great for both solo adventures and sharing with a friend.y. It fits well in my backpack and is great for both solo adventures and sharing with a friend.Cons:Weight: Given its solid build and capacity, it’s a bit heavier than some other flasks. However, this is a minor trade-off for the durability and insulation performance it offers.Overall:The Thermos Ultimate Series Flask, Charcoal, 900 ml, is a top-notch product that lives up to its name. It provides outstanding insulation, durability, and convenience, making it an essential item for anyone who enjoys outdoor activities or needs reliable temperature control for their drinks. Despite being slightly heavier, its performance more than makes up for it. ### ⭐⭐⭐⭐⭐ Elite flask. Performance justifies the price. *by on Reviewed in the United Kingdom 3 March 2025* Being an outdoor worker in Wales, I've owned a lot of different flasks - including quite a few Thermos ones. ALL of them before this one had a major flaw - once some of the liquid (tea) was consumed, the cold air that replaced the tea cooled the rest down to a tepid temperature within 4 hours.I've always disliked the easy-pour/flip lids (actually, particularly on the standard 1L Thermos flasks - I've had two and on both of them the stoppers gave up within a year), but this double screw one actually works well, and alongside the excellent build quality of this flask, even half full/half empty (to those philosophers out there - they're the SAME THING!!!) it's still piping hot, 8 hours later.I purchased the 900ml 3 months ago, and so far have appreciated its excellence. There's no denying it's expensive, but you get what you pay for - this isn't Thermocafe or standard Thermos, it's an elite well-designed, practical flask. The only downside for me was that I had to cut some rubber off the cup/lid to allow it to fit in my (Iveco Himatic) van's cup holders.I stopped to write this review in the middle of purchasing the 500ml version, for lunch soup. I'd recommend the 900ml version unreservedly, it is seriously the best flask I've ever owned in terms of keeping stuff hot. --- ## 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/696950241-thermos-matt-black-ultimate-drinks-flask-900ml-24h-hot-24h](https://www.desertcart.us/products/696950241-thermos-matt-black-ultimate-drinks-flask-900ml-24h-hot-24h) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-16*