---
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: "10541 kr"
currency: ISK
in_stock: true
reviews_count: 1
category: "Thermos"
url: https://www.desertcart.is/products/725939322-matt-black-ultimate-flask-500ml-reusable-insulated-stainless-steel-thermal
store_origin: IS
region: Iceland
---

# 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:** 10541 kr
**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?** 10541 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/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 your hands stay dry and comfy.
- • **Spill-Proof Smart Pour:** Innovative two-part stopper controls flow perfectly, preventing leaks while making refills and cleaning a breeze.
- • **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 laughs in the face of drops and dents.
- • **Adventure-Ready 500ml Capacity:** Compact yet generous size fits effortlessly in your backpack, fueling your day from sunrise hikes to late-night work sessions.

## 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, drop-resistant design with protective silicone rings and a spill-proof two-part stopper, it offers a comfortable, condensation-free grip ideal for professionals and outdoor enthusiasts alike. Compact and durable, this flask is your perfect all-day hydration companion.

## 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

Review: Real 24 hours - I made tea even after 24 hours, i couldn’t believe my eyes. Lightweight. Best design. I love it

## 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 |
|---------------|-------|
| ASIN | B0DSG78H69 |
| Additional Features | Cold 24 Hours, Hot 24 Hours |
| Age Range Description | Adult |
| Age range (description) | Adult |
| Best Sellers Rank | #119,897 in Kitchen ( See Top 100 in Kitchen ) #376 in Cup & Saucer Sets #1,787 in Insulated Bottles |
| Brand | THERMOS |
| Brand Name | THERMOS |
| Cap Type | Screw Cap |
| Capacity | 500 Milliliters |
| Color | Matt Black |
| Colour | Matt Black |
| Customer Reviews | 4.6 out of 5 stars 31 Reviews |
| 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 |
| Item height | 23.6 centimeters |
| 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 |
| Recommended uses for product | Coffee, Soup, Tea, Water |
| Special features | Cold 24 Hours, Hot 24 Hours |
| 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)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Real 24 hours
*by M***A on 5 January 2026*

I made tea even after 24 hours, i couldn’t believe my eyes. Lightweight. Best design. I love it

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**Shop now:** [https://www.desertcart.is/products/725939322-matt-black-ultimate-flask-500ml-reusable-insulated-stainless-steel-thermal](https://www.desertcart.is/products/725939322-matt-black-ultimate-flask-500ml-reusable-insulated-stainless-steel-thermal)

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-03-08*