Thermos Vacuum Insulated Flasks of 2025

Advertising Disclosure

Last Updated - April 21, 2025

Best Choice

1

THERMOS
THERMOS Stainless King Vacuum-Insulated Beverage Bottle, 68 Ounce, Matte Steel

9.9 Watertight

9.7 Simple to use

9.7 Temperature control

Why we love it

Keeps drinks hot or cold for 24 hours.

Durable stainless steel construction.

Large capacity ideal for group use.
Main highlights

Vacuum Insulation Technology
THERMOS vacuum insulation retains temperature for 24 hours, ensuring drinks stay hot or cold.

Perfect for Outdoor Adventures
Ideal for camping, hiking, or road trips, keeping beverages fresh all day.

Highly Praised Heat Retention
Customers love its ability to keep beverages hot overnight, even in cold conditions.
Show more
9.9

Exceptional

View offer on:

Show more
Curious about how we select the top products for you? Explore How It Works

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
Value for Money

2

THERMOS
THERMOS Stainless King Vacuum-Insulated Beverage Bottle, 40 Ounce, Matte Stainless Steel

9.7 Watertight

9.7 materials Quality

9.5 lasts a long time

Why we love it

Excellent temperature retention for 24 hours.

Durable stainless steel construction.

Convenient twist-and-pour stopper.
Main highlights

Temperature Retention
THERMOS vacuum insulation keeps beverages hot or cold for 24 hours, ideal for long trips.

Outdoor Adventures
Perfect for outdoor adventures, road trips, and group outings with 40-ounce capacity.

Superior Heat Retention
Customers praise its ability to keep drinks hot for extended periods.
Show more
9.8

Exceptional

View offer on:

Show more
3

THERMOS
THERMOS Stainless King Vacuum-Insulated Drink Bottle, 24 Ounce, Matte Steel

12% Off

9.7 Lock Feature

9.5 Watertight

9.5 Easy to grip

Why we love it

Keeps drinks hot or cold efficiently.

Durable stainless steel construction.

User-friendly lid prevents spills.
Main highlights

Temperature Retention
THERMOS vacuum insulation keeps beverages hot for 18 hours or cold for 24 hours.

Ideal for Outdoor Use
Perfect for outdoor adventures, ensuring drinks stay fresh and at optimal temperature.

User-Friendly Design
Praised for its smooth flow lid design that prevents spills and ensures easy drinking.
Show more
9.6

Exceptional

View offer on:

Show more
4

THERMOS
THERMOS Stainless King Vacuum-Insulated Compact Bottle, 16 Ounce, Matte Steel

9.9 materials Quality

9.9 Temperature control

9.7 Watertight

Why we love it

Keeps drinks hot or cold for hours.

Durable stainless steel construction.

Leak-proof design with easy pouring.
Main highlights

Temperature Retention
THERMOS vacuum insulation keeps beverages hot for 18 hours or cold for 24 hours.

Outdoor Adventures
Ideal for outdoor activities, ensuring drinks stay at the right temperature.

Leak-Proof Performance
Customers praise its ability to prevent leaks and maintain heat.
Show more
9.4

Excellent

View offer on:

Show more
5

THERMOS
THERMOS FBB500SS4 Vacuum Insulated 16 Ounce Compact Stainless Steel Beverage Bottle

19% Off

9.7 worth the money

9.7 Watertight

9.7 Easy to grip

Why we love it

Excellent temperature retention.

Compact and portable.

Durable stainless steel construction.
Main highlights

Temperature Retention
Thermos vacuum insulation keeps beverages hot for 12 hours or cold for 24.

Ideal for On-the-Go
Compact design with built-in cup, perfect for travel and work.

Highly Praised Heat Retention
Customers love its ability to keep drinks hot for hours.
Show more
9.1

Excellent

View offer on:

Show more
6

Hydro Flask
Hydro Flask 20 Oz Insulated Food Jar Black

38% Off
Main highlights

TempShield️ double-wall vacuum insulation protects temperature for hours
Leakproof when closed
Easy grip lid
BPA-Free
Show more
8.9

Very Good

View offer on:

Show more
7

MILTON
Milton Thermosteel Flip Lid 1000, Double Walled Vacuum Insulated Thermos 1000 ml | 34 oz | 1 Ltr | 24 Hours Hot and Cold Water Bottle with Cover, Stainless Steel, BPA Free,Leak Proof | Silver

9.9 worth the money

9.3 Easy to grip

9.1 Simple to clean

Why we love it

Keeps beverages hot or cold for 24 hours.

Convenient one-handed flip lid design.

Durable and rust-resistant stainless steel.
Main highlights

24 Hour Temperature Retention
Double-wall vacuum insulation keeps drinks hot or cold for 24 hours.

Versatile Use Cases
Ideal for gym, office, outdoor adventures, and daily hydration.

Convenient Flip Lid
Praised for easy one-handed operation and practical use.
Show more
8.8

Very Good

View offer on:

Show more
8

Hydro Flask
Hydro Flask 21 Oz Standard Mouth Flex Cap Cascade Insulated Water Bottle, 621 ml, Stainless Steel, TempShield Double-Wall Vacuum Insulation, Leakproof

37% Off

Why we love it

Keeps drinks cold for 24 hours.

Leakproof design prevents spills.

Dishwasher safe for easy cleaning.
Main highlights

Long Lasting Temperature Control
Keeps beverages cold for 24 hours, hot for 12 hours.

Perfect for On-the-Go
Ideal for travel, fits in cupholders, leakproof with a flex cap.

Highly Durable and Safe
Stainless steel construction praised for durability and BPA-free safety.
Show more
8.7

Very Good

View offer on:

Show more
9

THERMOS
THERMOS Stainless King Vacuum-Insulated Travel Tumbler, 16 Ounce, Matte Steel

20% Off

9.5 Easy to grip

9.5 easy to consume

9.3 Watertight

Why we love it

Keeps beverages hot or cold for hours.

Durable stainless steel construction.

Leak-proof lid with tea hook.
Main highlights

Temperature Retention
THERMOS vacuum insulation keeps drinks hot for 7 hours, cold for 18 hours.

Ideal for Travel
Perfect for long treks, road trips, or daily commutes.

Leak-Proof Design
Customers love the DRINKLOCK sealing lid for preventing spills.
Show more
8.5

Good

View offer on:

Show more
10

THERMOS
THERMOS Stainless King Vacuum-Insulated Compact Bottle, 16 Ounce, Midnight Blue

23% Off

9.9 materials Quality

9.7 Watertight

9.7 easy to consume

Why we love it

Excellent temperature retention.

Durable stainless steel build.

Compact and portable size.
Main highlights

Temperature Retention
THERMOS vacuum insulation keeps beverages hot for 18 hours or cold for 24 hours.

Outdoor and Travel Ready
Ideal for outdoor adventures or long road trips with its durable and compact design.

Leak-Proof Performance
Highly praised for keeping drinks hot and being leak-proof.
Show more
8.4

Good

View offer on:

Show more

Thermos Vacuum Insulated Flasks of 2025

1

THERMOS Stainless King Vacuum-Insulated Beverage Bottle, 68 Ounce, Matte Steel

Why we love it

2

THERMOS Stainless King Vacuum-Insulated Beverage Bottle, 40 Ounce, Matte Stainless Steel

Why we love it

3

THERMOS Stainless King Vacuum-Insulated Drink Bottle, 24 Ounce, Matte Steel

Why we love it

4

THERMOS Stainless King Vacuum-Insulated Compact Bottle, 16 Ounce, Matte Steel

Why we love it

5

THERMOS FBB500SS4 Vacuum Insulated 16 Ounce Compact Stainless Steel Beverage Bottle

Why we love it

6

Hydro Flask 20 Oz Insulated Food Jar Black

7

Milton Thermosteel Flip Lid 1000, Double Walled Vacuum Insulated Thermos 1000 ml | 34 oz | 1 Ltr | 24 Hours Hot and Cold Water Bottle with Cover, Stainless Steel, BPA Free,Leak Proof | Silver

Why we love it

8

Hydro Flask 21 Oz Standard Mouth Flex Cap Cascade Insulated Water Bottle, 621 ml, Stainless Steel, TempShield Double-Wall Vacuum Insulation, Leakproof

Why we love it

9

THERMOS Stainless King Vacuum-Insulated Travel Tumbler, 16 Ounce, Matte Steel

Why we love it

10

THERMOS Stainless King Vacuum-Insulated Compact Bottle, 16 Ounce, Midnight Blue

Why we love it

Similar products on Amazon

Insulated vacuum Thermo Bottle 500ml/16.9oz with cup Stainless steel coffee bottles for hot and cold drink water flask.(Silver,500ml)

$16.99

RUBYFLASK 32oz Insulated Water Bottle with Straw, Stainless Steel Metal Vacuum Water Flask, Large Thermos Water bottle with Leakproof 3 Lids for Travel, Camping, Gym Sports Indigo Black

$12.26

68oz Coffee Carafe Airpot Insulated Coffee Thermos Urn Stainless Steel Vacuum Thermal Pot Flask for Coffee, Hot Water, Tea, Hot Beverage - Keep 12 Hours Hot, 24 Hours Cold

$19.99

MILTON Thermos Insulated Water Bottle 25 oz (750 ml) Stainless Steel Double walled vacuum flask for 24 Hours Hot and Cold Drinks, Leak Proof for Travel, Office, Gym, Elfin 750 Silver

$14.99

Thermos - Stainless Steel Direct Drink Flask (470ml) Reusable Insulated Thermal Coffee Cup for Hot or Cold Drinks, Vacuum Sealed Water Flask with a Leak-Proof Lid, 10hr Hot/24hr Cold

$38.20

Stanley Heritage Classic Vacuum Bottle with Handle 1.1 qt | Wide Mouth with Leakproof Cup Lid | Keep Drinks Hot or Cold for Travel | Insulated Stainless Steel Thermos | BPA-Free | Hammertone Green

$56.42

MUCR 500ml/17 OZ Stainless Steel Coffee Thermo Vacuum Flask Set, Insulated Water Bottle with Three Cup for Hot and Cold Drinks, Blue

$16.99

THERMOS Stainless King Vacuum-Insulated Food Jar, 24 Ounce, Matte Steel

$23.75

10oz Mini Water Bottle Stainless Steel Thermos Small Flask - Insulated Vacuum, Leak Proof, Keeps Drinks Hot/Cold - Ideal for Coffee, Tea, Water - Black

$14.99

Stainless Steel Thermo 500ml/16.9oz Vacuum Insulated Bottle with Cup for Coffee Hot drink and Cold drink water flask.(Blue,Set)

$21.99

Sign up and get exclusive special deals