---
product_id: 648120088
title: "THERMOS STAINLESS STEEL VACUUM INSULATED MIDNIGHT BLUE FLASK 350 ML, FBB-350MB, VACUUM FLASK, THERMAL FLASK, INSULATED WATER BOTTLE"
brand: "thermos"
price: "€ 40.04"
currency: EUR
in_stock: true
url: https://www.desertcart.pt/products/648120088-thermos-stainless-steel-vacuum-insulated-midnight-blue-flask-350-ml
store_origin: PT
region: Portugal
---

# Leak-proof lid for zero spills Keeps drinks hot for 12h Keeps drinks cold for 24h THERMOS STAINLESS STEEL VACUUM INSULATED MIDNIGHT BLUE FLASK 350 ML, FBB-350MB, VACUUM FLASK, THERMAL FLASK, INSULATED WATER BOTTLE

**Brand:** thermos
**Price:** € 40.04
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay hot, stay cool, stay ahead! ❄️

## Quick Answers

- **What is this?** THERMOS STAINLESS STEEL VACUUM INSULATED MIDNIGHT BLUE FLASK 350 ML, FBB-350MB, VACUUM FLASK, THERMAL FLASK, INSULATED WATER BOTTLE by thermos
- **How much does it cost?** € 40.04 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/648120088-thermos-stainless-steel-vacuum-insulated-midnight-blue-flask-350-ml)

## 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

- • **Compact yet capacious:** 350 ml capacity fits perfectly in your bag without weighing you down.
- • **Effortless maintenance:** Easy to clean design keeps your flask fresh and ready for every adventure.
- • **Spill-proof confidence:** Leak-proof lid means no mess, no stress during your commute or meetings.
- • **All-day temperature control:** Enjoy your coffee piping hot or your water ice-cold, anytime, anywhere.
- • **Durable stainless steel build:** Crafted for longevity and a sleek, professional look that fits your lifestyle.

## Overview

The Thermos Stainless Steel Vacuum Insulated Flask (350 ml) in Midnight Blue combines robust stainless steel construction with advanced vacuum insulation technology to keep beverages hot for up to 12 hours and cold for up to 24 hours. Its leak-proof lid ensures spill-free portability, while the sleek, compact design suits professional and active lifestyles alike.

## Description

THERMOS STAINLESS STEEL VACUUM INSULATED MIDNIGHT BLUE FLASK 350 ML, FBB-350MB, VACUUM FLASK, THERMAL FLASK, INSULATED WATER BOTTLE

## Features

- Thermos brand Stainless Steel vacuum insulated flask is a durable and high-quality beverage container.
- It can keep beverages hot for up to 12 hours and cold for up to 24 hours.
- The flask is constructed with Stainless Steel material, ensuring longevity and robustness. It features a leak-proof lid that makes it convenient for transportation without the risk of spills.
- The sleek design of the flask makes it visually appealing and versatile for different settings. Suitable for both hot and cold beverages, providing flexibility in usage.
- Easy to clean and maintain, enhancing the overall user experience.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | THERMOS |
| Model Number | FBB-350MB |
| Color | MIDNIGHT BLUE |
| Product Dimensions | 6.5 x 6.5 x 20.5 cm; 300 g |
| Capacity | 350 Milliliters |
| Material | Stainless Steel |
| Special Features | Leakproof |
| Item Weight | 300 g |

## Product Details

- **Brand:** THERMOS
- **Capacity:** 350 Milliliters
- **Colour:** MIDNIGHT BLUE
- **Recommended uses for product:** Water
- **Special features:** Leakproof

## Images

![THERMOS STAINLESS STEEL VACUUM INSULATED MIDNIGHT BLUE FLASK 350 ML, FBB-350MB, VACUUM FLASK, THERMAL FLASK, INSULATED WATER BOTTLE - Image 1](https://m.media-amazon.com/images/I/51-ZTUMDaaL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Frequently Bought Together

- THERMOS STAINLESS STEEL VACUUM INSULATED MIDNIGHT BLUE FLASK 350 ML, FBB-350MB, VACUUM FLASK, THERMAL FLASK, INSULATED WATER BOTTLE
- THERMOS STAINLESS STEEL VACUUM INSULATED STEEL FLASK 1000 ML, FBB-1000SBK, VACUUM FLASK, THERMAL FLASK, INSULATED WATER BOTTLE
- THERMOS Stainless King Flask, Midnight Blue, 1.2 L, 183267, 33.6 x 11.99 x 33.6 cm

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**Shop now:** [https://www.desertcart.pt/products/648120088-thermos-stainless-steel-vacuum-insulated-midnight-blue-flask-350-ml](https://www.desertcart.pt/products/648120088-thermos-stainless-steel-vacuum-insulated-midnight-blue-flask-350-ml)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-01-31*