--- product_id: 725939322 title: "Matt Black Ultimate Flask (500ml), Reusable Insulated Stainless Steel Thermal Coffee Cup for Hot or Cold Drinks, Vacuum Sealed Water Flask with a Leak-Proof Lid, 24hr Hot/24hr Cold" brand: "thermos" price: "¥9885" currency: JPY in_stock: true reviews_count: 6 url: https://www.desertcart.jp/products/725939322-matt-black-ultimate-flask-500ml-reusable-insulated-stainless-steel-thermal store_origin: JP region: Japan --- # 24hr hot retention 24hr cold retention rugged stainless steel build Matt Black Ultimate Flask (500ml), Reusable Insulated Stainless Steel Thermal Coffee Cup for Hot or Cold Drinks, Vacuum Sealed Water Flask with a Leak-Proof Lid, 24hr Hot/24hr Cold **Brand:** thermos **Price:** ¥9885 **Availability:** ✅ In Stock ## Summary > 🔥 Stay hot, stay cool, stay unstoppable. 🏞️ ## Quick Answers - **What is this?** Matt Black Ultimate Flask (500ml), Reusable Insulated Stainless Steel Thermal Coffee Cup for Hot or Cold Drinks, Vacuum Sealed Water Flask with a Leak-Proof Lid, 24hr Hot/24hr Cold by thermos - **How much does it cost?** ¥9885 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/725939322-matt-black-ultimate-flask-500ml-reusable-insulated-stainless-steel-thermal) ## 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 - • **Comfort Grip, No Sweat:** Double-wall insulation keeps the exterior cool and condensation-free, so you stay comfortable no matter the weather. - • **Spill-Proof Smart Pour:** Innovative two-part stopper controls flow perfectly and prevents leaks—sip confidently on the move. - • **All-Day Temperature Mastery:** Keeps your coffee piping hot or your water ice-cold for a full 24 hours—no compromises. - • **Built to Brave the Outdoors:** Durable stainless steel with protective silicone rings means this flask survives every adventure unscathed. - • **Adventure-Ready 500ml Capacity:** Compact yet ample size fits easily in your gear, fueling your day from sunrise coffee to midday hydration. ## Overview The Thermos Matt Black Ultimate Flask is a 500ml insulated stainless steel bottle engineered with advanced vacuum technology to keep beverages hot or cold for 24 hours. Featuring a rugged, scratch-resistant design with protective silicone rings and a spill-proof two-part stopper, it offers a comfortable, condensation-free grip ideal for outdoor enthusiasts and busy professionals alike. ## Description 24-Hour Temperature Control Unrivalled temperature retention comes from advanced vacuum insulation technology. Your beverages stay steaming hot for 24 hours or refreshingly cold for 24 hours, making this flask essential for long outdoor adventures. The double-wall stainless steel construction ensures drinks maintain their temperature while the exterior remains comfortable to hold - no sweating with cold drinks or scalding with hot ones. Engineered for the Elements Built to withstand rugged outdoor conditions, this 500ml flask features protective silicone rings and stainless steel construction inside and out. The robust design resists impacts and scratches while maintaining pristine functionality. The innovative two-part stopper system delivers smooth pouring without spills, making it ideal for hiking, camping, or any outdoor pursuit. Adventure-Ready Companion Designed for outdoor enthusiasts who refuse to let weather dictate their plans. This 500ml matt black flask works with hot coffee at sunrise or ice-cold water during midday treks. The compact size fits easily in backpack side pockets or gear bags, while the durable build quality ensures reliable performance throughout your journey. Compatible with Thermos® technology for exceptional insulation. -Keeps drinks hot or cold for 24 hours -Tough stainless steel construction inside and out -Safe-touch exterior with no condensation -Protective silicone for extra durability -Smooth-flow drinking stopper ## 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 - 500ml 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 | |---------------|-------| | Additional Features | Cold 24 Hours, Hot 24 Hours | | Age Range Description | Adult | | Asin | B0DSG78H69 | | Best Sellers Rank | #133,020 in Kitchen (See Top 100 in Kitchen) #2,074 in Insulated Bottles | | Brand Name | THERMOS | | Cap Type | Screw Cap | | Capacity | 500 ml | | Color | Matt Black | | Customer Reviews | 4.6 4.6 out of 5 stars (41) 4.6 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 | 7.2W x 23.6H centimeters | | Item Type Name | Flask | | Manufacturer | Thermos | | Material Type | Stainless Steel Silicone Polypropylene | | Model Name | FFX500 | | Number Of Items | 1 | | Product Care Instructions | Hand Wash Only | | Recommended Uses For Product | Coffee, Soup, Tea, Water | | Theme | Adventure, Indoor, Outdoor, Travel | | Unit Count | 1 Count | | With Lid | Yes | ## Product Details - **Brand:** THERMOS - **Capacity:** 500 Milliliters - **Colour:** Matt Black - **Recommended uses for product:** Coffee, Soup, Tea, Water - **Special features:** Cold 24 Hours, Hot 24 Hours ## Images ![Matt Black Ultimate Flask (500ml), Reusable Insulated Stainless Steel Thermal Coffee Cup for Hot or Cold Drinks, Vacuum Sealed Water Flask with a Leak-Proof Lid, 24hr Hot/24hr Cold - Image 1](https://m.media-amazon.com/images/I/61DerzqcHOL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Real 24 hours *by on Reviewed in the United Arab Emirates 5 January 2026* I made tea even after 24 hours, i couldn’t believe my eyes. Lightweight. Best design. I love it ### ⭐⭐⭐⭐⭐ Sehr gut termos! *by on Reviewed in Germany 8 November 2025* Perfekt!!! ### ⭐⭐⭐⭐⭐ Buy it *by on Reviewed in the United Kingdom 28 July 2026* Amazing quality and heat retention! A must for new mums/dads for hotshot formula making inside the house, through the night or out and about --- ## 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.jp/products/725939322-matt-black-ultimate-flask-500ml-reusable-insulated-stainless-steel-thermal](https://www.desertcart.jp/products/725939322-matt-black-ultimate-flask-500ml-reusable-insulated-stainless-steel-thermal) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-11*