Thermos® Light & Compact Stainless Steel Vacuum Insulated Flask 350ml – Midnight Blue

Brand: Thermos®
Product Type: Vacuum Insulated Flask
Capacity: 350ml
Color: Midnight Blue
Body: Double-Wall 18/8 Stainless Steel
Interior: 18/8 Stainless Steel
Insulation: TherMax™ Vacuum Insulation
Interior Coating: None
Stopper: BPA-Free Plastic Push-Button Valve
Seals/Gaskets: Food-Grade Silicone
Outer Cup: Insulated Stainless Steel
Suitable For: Hot & Cold Beverages

The Thermos® Light & Compact Stainless Steel Vacuum Insulated Flask 350ml

 is a compact, lightweight beverage flask designed for convenient everyday use. Made with premium double-wall 18/8 stainless steel and Thermos® TherMax™ vacuum insulation, it helps maintain beverage temperature while remaining easy to carry. A BPA-free push-button valve, food-grade silicone seals, and insulated stainless steel outer cup provide practical and reliable everyday performance.

Introduction

The Thermos® Light & Compact 350ml Flask is designed for convenient beverage storage when portability and temperature retention are important. Its compact 350ml capacity makes it ideal for work, school, commuting, short trips, and everyday use.

The flask features a double-wall 18/8 stainless steel construction with an uncoated interior, providing a durable and corrosion-resistant design. Thermos® TherMax™ vacuum insulation helps minimize heat transfer and maintain the temperature of hot or cold beverages. The BPA-free push-button stopper provides convenient serving, while the insulated stainless steel outer cup can be used for drinking.

Key Materials Overview

Premium 18/8 Stainless Steel

The inner and outer body are made from 18/8 stainless steel, providing durable construction and resistance to corrosion.

TherMax™ Vacuum Insulation

Thermos® vacuum insulation minimizes heat transfer between the inner and outer walls, helping beverages maintain their temperature for longer.

BPA-Free Push-Button Stopper

The stopper uses BPA-free plastic and features a push-button valve for convenient pouring without completely removing the stopper.

Food-Grade Silicone Seals

Silicone gaskets help create a secure seal and reduce the risk of leakage when the flask is properly closed.

Insulated Stainless Steel Outer Cup

The outer cup features stainless steel construction and provides a convenient serving option while helping protect against direct contact with the hot or cold flask body.

Uncoated Interior

The stainless steel interior is uncoated, providing a direct stainless steel beverage-contact surface.

Comparison Section

Thermos® 350ml Flask vs 1100ml Travel Mug

The 350ml flask is more compact and convenient for smaller beverage portions, while a 1100ml travel mug is better for extended hydration and larger quantities.

Thermos® 350ml Flask vs Regular Bottle

The Thermos® flask provides vacuum insulation and temperature retention, while a conventional bottle without insulation generally does not offer the same thermal performance.

Thermos® 350ml Flask vs 2.2L Pump Pot

The 350ml flask is designed for individual portable use, whereas a 2.2L pump pot is intended for serving beverages to multiple people.

Health Boutique Expert Insight

A compact insulated flask is useful when you need a controlled beverage temperature without the bulk of a large thermos. The 18/8 stainless steel construction and uncoated interior provide a durable beverage-contact surface, while TherMax™ vacuum insulation reduces temperature transfer. For hygiene, clean the push-button mechanism and silicone seals regularly.

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🛒 Order Thermos® Light & Compact Stainless Steel Vacuum Insulated Flask 350ml – Midnight Blue today from HealthBoutiqueJo.com

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💙 Compact, durable, and vacuum insulated for conveniently carrying your favorite hot or cold beverages wherever you go.

Compact 350ml capacity.
Premium double-wall 18/8 stainless steel construction.
Thermos® TherMax™ vacuum insulation.
Uncoated stainless steel interior.
BPA-free push-button valve.
Food-grade silicone seals.
Insulated stainless steel outer serving cup.
Midnight Blue exterior finish.
Lightweight and compact for easy carrying.
Suitable for hot and cold beverages.

Why Customers Choose This Product

The Thermos® Light & Compact Flask combines durable stainless steel, vacuum insulation, and a compact 350ml design, making it ideal for users who want temperature-controlled beverages without carrying a large bottle.

Who Is It Suitable For?

Office workers.
Students.
Commuters.
Travelers.
People who prefer smaller beverage portions.
Coffee and tea drinkers.
Anyone looking for a compact insulated flask.

Who May Prefer Another Product?

Those who need larger amounts of water or beverages throughout the day may prefer a 750ml–1.1L insulated bottle or travel mug.

Wash the flask, stopper, and cup before first use.
Fill with your preferred hot or cold beverage.
Avoid overfilling.
Secure the push-button stopper firmly.
Press the valve when you are ready to pour.
Use the outer cup for serving if desired.
Clean all components thoroughly after use.
Allow components to dry completely before storage.
Follow the manufacturer's care instructions.

Premium 18/8 Stainless Steel, TherMax™ Vacuum Insulation, BPA-Free Push-Button Stopper, Food-Grade Silicone Seals, Insulated Stainless Steel Outer Cup, & Uncoated Interior

What is the capacity of the Thermos® Light & Compact Flask?

The flask has a 350ml capacity.

Is it made from stainless steel?

Yes. The body uses double-wall 18/8 stainless steel for both the interior and exterior.

Does it have an interior coating?

No. The interior is uncoated stainless steel.

What is TherMax™ insulation?

TherMax™ is Thermos® vacuum insulation technology designed to reduce heat transfer and help beverages maintain their temperature.

Does it have a push-button valve?

Yes. The BPA-free stopper features an integrated push-button valve for convenient pouring.

Does it include a cup?

Yes. The flask has an insulated stainless steel outer cup.

Are the seals food-grade?

Yes. The seals and gaskets are made from food-grade silicone.

Is it suitable for hot beverages?

Yes. It is designed for hot and cold beverages.

Is the 350ml size good for travel?

Yes. Its compact size makes it particularly convenient for commuting, school, work, and short trips.

Is the interior uncoated?

Yes. The beverage-contact interior is uncoated stainless steel.

What does 18/8 stainless steel mean?

18/8 stainless steel generally contains approximately 18% chromium and 8% nickel, a composition valued for durability and corrosion resistance.

What is the benefit of an uncoated stainless steel interior?

An uncoated interior means there is no additional coating layer between the stainless steel and the beverage, while the stainless steel itself provides the beverage-contact surface.

How does TherMax™ vacuum insulation work?

Vacuum insulation reduces the amount of heat transferred between the inner and outer walls, helping hot beverages stay hot and cold beverages stay cold for longer.

Is the Thermos® 350ml flask suitable for coffee?

Yes. Its vacuum-insulated stainless steel construction is suitable for carrying coffee, tea, and other beverages.

Why choose a 350ml flask?

The compact size is ideal for carrying a single smaller serving while taking up less space than a large travel mug or thermos.

Is the Thermos® Light & Compact 350ml Flask suitable for everyday use?

Yes. Its compact size, durable stainless steel construction, push-button valve, and vacuum insulation make it practical for work, school, commuting, and travel.

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