---
product_id: 48416037
title: "Charcoal Ultimate Flask (900ml), 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: "3342050₫"
currency: VND
in_stock: true
reviews_count: 13
category: "Thermos"
url: https://www.desertcart.vn/products/48416037-charcoal-ultimate-flask-900ml-reusable-insulated-stainless-steel-thermal-coffee
store_origin: VN
region: Vietnam
---

# 24hr hot retention 24hr cold retention rugged stainless steel build Charcoal Ultimate Flask (900ml), 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:** 3342050₫
**Availability:** ✅ In Stock

## Summary

> 🔥 Sip in style, stay unstoppable all day long!

## Quick Answers

- **What is this?** Charcoal Ultimate Flask (900ml), 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?** 3342050₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/48416037-charcoal-ultimate-flask-900ml-reusable-insulated-stainless-steel-thermal-coffee)

## 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

- • **Smart Spill-Stopper:** Innovative two-part stopper and wide mouth design let you pour with precision and clean with ease—no mess, no stress.
- • **Effortless Comfort Grip:** Double-wall insulation means no sweaty hands or burns—just smooth, comfortable sipping anytime, anywhere.
- • **Generous 900ml Capacity:** Fuel your long workdays, epic hikes, or weekend getaways with enough liquid to keep you going strong.
- • **Adventure-Proof Durability:** Crafted with tough stainless steel and shock-absorbing silicone rings, this flask laughs in the face of drops and dents.
- • **All-Day Temperature Mastery:** Keeps your coffee piping hot or your iced drinks refreshingly cold for a full 24 hours—because your beverage deserves VIP treatment.

## Overview

The Thermos Charcoal Ultimate Flask is a premium 900ml insulated stainless steel bottle engineered with advanced vacuum technology to keep drinks hot or cold for 24 hours. Featuring a rugged design with protective silicone rings, a leak-proof two-part stopper, and a comfortable double-wall grip, it’s the perfect companion for professionals and adventurers who demand durability, convenience, and temperature perfection on the go.

## Description

Great prices on your favourite Home brands, and free delivery on eligible orders.

Review: Thermos Ultimate beyond compare and a shrewd long term investment an - 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.
Review: Fantastic Thermos Flask - Excellent! Couldn’t be happier with this Thermos Ultimate flask - looked online for top recommendations and this was always in the top 5. It’s had everything from coffee, soup and chilli in it. It’s easy to clean, use and pack into a rucksack. So far we’ve had no accidents, leaks or breakages. It’s easy to use and does a fantastic job of keeping food and drinks warm.

## 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 |
|---------------|-------|
| ASIN | B013YMS8RM |
| Batteries required | No |
| Best Sellers Rank | 6,455 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 43 in Insulated Bottles |
| Care instructions | Hand Wash Only |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,304) |
| Date First Available | 15 Aug. 2015 |
| Dishwasher safe? | No |
| Included components | Lid Cup, Pouring Spout, Protective Silicone Rings, Stainless Steel Bottle, Two Part Stopper |
| Item model number | 104110 |
| Item volume | 900 Millilitres |
| Item weight | 390 Grams |
| Number of pieces | 1 |
| Product Dimensions | 11.81 x 11.81 x 3.46 cm; 390 g |

## Product Details

- **Brand:** Thermos
- **Capacity:** 900 Millilitres
- **Colour:** Charcoal
- **Recommended uses for product:** Coffee, Soup, Tea, Water
- **Special feature:** Durability,Lightweight

## Images

![Charcoal Ultimate Flask (900ml), 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/618DdFWdwpL.jpg)

## Questions & Answers

**Q: I've been an idiot and lost the cup/outer lid of the flask. can I buy spare parts from anywhere? also, will not having the cup/outer lid on reduce the**
A: Yes, these are available directly from Thermos.
https://www.thermosonline.co.uk/store/Spare-Parts/sc_95

**Q: I have lost the screw in tops for my Thermos. Can any one tell me if these pieces can be attained on their own ?**
A: Try https://www.thermosonline.co.uk/store/Spare-Parts/

**Q: i am needing a new screwcap with seal for thermos ultimate 900 as my seal has become loose wondering where to purchase one thanks**
A: Flasks online.. I’ve used them to order a replacement cap

**Q: How does it pour?**
A: Unscrew the 'cork' a few turns then pour (practice over the sink at first) OR for more control, remove the cork completely.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Thermos Ultimate beyond compare and a shrewd long term investment an
*by S***R on 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.

### ⭐⭐⭐⭐⭐ Fantastic Thermos Flask
*by S***E on 18 December 2025*

Excellent! Couldn’t be happier with this Thermos Ultimate flask - looked online for top recommendations and this was always in the top 5. It’s had everything from coffee, soup and chilli in it. It’s easy to clean, use and pack into a rucksack. So far we’ve had no accidents, leaks or breakages. It’s easy to use and does a fantastic job of keeping food and drinks warm.

### ⭐⭐⭐⭐⭐ A flask you can rely on.
*by P***R on 11 January 2026*

A truly outstanding little flask. I have the 900ml and the 500ml both are exceptional and keep everything very hot for 24 hours, I use the small one for soups and all sorts. Great value for money and excellent performance. Well worth buying.

## Frequently Bought Together

- Thermos - Charcoal Ultimate Flask (900ml), 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
- Thermos - Charcoal 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

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-02-04*