---
product_id: 53329520
title: "Isosteel VA-9901D 1.0 litre, Double Walled Duo-Vacuum Flask, 2 Stainless Steel/Plastic Screw-on Mugs, Food Grade 18/8 Stainless Steel"
brand: "isosteel"
price: "€ 4.84"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.ie/products/53329520-isosteel-va-9901d-1-0-litre-double-walled-duo-vacuum
store_origin: IE
region: Ireland
---

# Secure screw-on lids Food-grade stainless steel Double-walled insulation Isosteel VA-9901D 1.0 litre, Double Walled Duo-Vacuum Flask, 2 Stainless Steel/Plastic Screw-on Mugs, Food Grade 18/8 Stainless Steel

**Brand:** isosteel
**Price:** € 4.84
**Availability:** ❌ Out of Stock

## Summary

> 🚀 Elevate Your Hydration Game!

## Quick Answers

- **What is this?** Isosteel VA-9901D 1.0 litre, Double Walled Duo-Vacuum Flask, 2 Stainless Steel/Plastic Screw-on Mugs, Food Grade 18/8 Stainless Steel by isosteel
- **How much does it cost?** € 4.84 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/53329520-isosteel-va-9901d-1-0-litre-double-walled-duo-vacuum)

## Best For

- isosteel enthusiasts

## Why This Product

- Trusted isosteel brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Travel Ready:** Lightweight and portable, this flask fits seamlessly into your busy lifestyle.
- • **Sleek & Stylish:** Designed with a modern aesthetic, this flask is perfect for the professional on the go.
- • **Eco-Friendly Choice:** Crafted from food-grade 18/8 stainless steel, making it a sustainable option for your daily hydration.
- • **Stay Hot, Stay Cool:** Experience the latest vacuum technology that keeps your beverages at the perfect temperature for hours.
- • **Versatile Mugs Included:** Comes with two stainless steel/plastic mugs for sharing your favorite drinks with colleagues.

## Overview

The Isosteel VA-9901D is a 1.0 litre double-walled duo-vacuum flask designed with the latest vacuum technology. It includes two stainless steel/plastic screw-on mugs and is made from food-grade 18/8 stainless steel, ensuring durability and safety for all your beverages.

## Description

Isosteel VA-9901D 1.0 litre, Double Walled Duo-Vacuum Flask, 2 Stainless Steel/Plastic Screw-on Mugs, Food Grade 18/8 Stainless Steel

## Features

- Latest vacuum technology

## Images

![Isosteel VA-9901D 1.0 litre, Double Walled Duo-Vacuum Flask, 2 Stainless Steel/Plastic Screw-on Mugs, Food Grade 18/8 Stainless Steel - Image 1](https://m.media-amazon.com/images/I/71QuoIi3UbL.jpg)
![Isosteel VA-9901D 1.0 litre, Double Walled Duo-Vacuum Flask, 2 Stainless Steel/Plastic Screw-on Mugs, Food Grade 18/8 Stainless Steel - Image 2](https://m.media-amazon.com/images/I/71el9bSddyL.jpg)
![Isosteel VA-9901D 1.0 litre, Double Walled Duo-Vacuum Flask, 2 Stainless Steel/Plastic Screw-on Mugs, Food Grade 18/8 Stainless Steel - Image 3](https://m.media-amazon.com/images/I/61ifcYJCf7L.jpg)
![Isosteel VA-9901D 1.0 litre, Double Walled Duo-Vacuum Flask, 2 Stainless Steel/Plastic Screw-on Mugs, Food Grade 18/8 Stainless Steel - Image 4](https://m.media-amazon.com/images/I/81vibsstkXL.jpg)
![Isosteel VA-9901D 1.0 litre, Double Walled Duo-Vacuum Flask, 2 Stainless Steel/Plastic Screw-on Mugs, Food Grade 18/8 Stainless Steel - Image 5](https://m.media-amazon.com/images/I/61i4NWxkH3L.jpg)

## Questions & Answers

**Q: Will this fit inside a standard cup holder?**
A: No it is to big in diameter.

**Q: WHY does this product advertise a copper coating?  Copper is the most thermally transmissible common metal.**
A: Thermal Insulation Effect of Copper Plating on the Inner Wall

Under normal circumstances, the heat transmission path of the insulated vacuum flask has radiation, convection and transmission. The inner wall with the copper-plated layer reflects heat radiation, effectively reducing the heat lost due to heat radiation. The copper plating on the inner wall thus forms a heat-insulating layer in the vacuum insulated  flask.

The vacuum insulated stainless steel flask with copper plating on the inner wall has a thermal insulating effect of about 30% better than that of the ordinary same type vacuum insulated stainless steel flasks.

The copper plating performance of the liner is stable, and the corrosion resistance is strong. The thermal radiation on the inner wall will be reflected back by the copper plating layer, which effectively reduces the loss of heat and greatly enhances the effect of heat insulation and cold preservation.

**Q: Is the interior of the mug stainless steel?**
A: Yes

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    High quality!
  

*by J***J on Reviewed in the United States on October 15, 2021*

Heavy and sturdy I love it so much

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Nice quality!
  

*by P***. on Reviewed in the United States on January 4, 2020*

Excellent quality! Keep water hot for over 24 hours. Didn’t like the double caps but not a real issue just a personal preference.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Better than I expected
  

*by K***E on Reviewed in the United States on June 22, 2018*

Better than I expected. I used it to carry hot, freshly made tea to work and even after I got home, despite drinking it all night, it was still as hot as though I had just poured it in.

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**Shop now:** [https://www.desertcart.ie/products/53329520-isosteel-va-9901d-1-0-litre-double-walled-duo-vacuum](https://www.desertcart.ie/products/53329520-isosteel-va-9901d-1-0-litre-double-walled-duo-vacuum)

---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-13*