Thermos Stainless King SK1005MB4 16-Ounce Leak-Proof Travel Mug, Midnight Blue

by Thermos

Product Features

• Ultra-durable travel mug for hot and cold beverages; 16-ounce capacity
• Unbreakable stainless steel interior and exterior
• Leak-proof Drinklock sealing lid
• Stays cool to the touch with hot liquids and is condensation-free with cold
• Hand wash only

Product Details

• Product Dimensions: 3.9 x 3.3 x 7.6 inches
• Shipping Weight: 3 pounds (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• ASIN: B002PY7AYS
• Item model number: SK1005MB4
• Average Customer Review: 4.7 out of 5 stars  See all reviews (757 customer reviews)
• Amazon Best Sellers Rank: #54 in Kitchen & Dining (See Top 100 in Kitchen & Dining)
  • #2 in Kitchen & Dining > Storage & Organization > Thermoses
  • #11 in Home & Kitchen > Storage & Organization

Product Description

Amazon.com Product Description

The ultra-durable, leak-proof Thermos Stainless King travel mug features an unbreakable stainless steel interior and exterior, making it a great companion for use in rough-and-tumble situations such as construction sites, delivery work, and more. Offering a 16-ounce capacity, the Stainless King features Thermos' TherMax double wall vacuum insulation that locks in temperature to preserve flavor and freshness--it stays cool to the touch with hot beverages and is condensation-free with cold. The contoured body is comfortable to hold and fits most automobile drink holders. Hand wash only.

Product Description

The Thermos brand is well known as the quality and performance leader in insulated food and beverage products. The Stainless King series creates a new chapter in Thermos' storied history with a modern line that blends our newest technology with a dash of the past. The Stainless King Food Jar has TherMax double wall vacuum insulation for maximum temperature retention, hot or cold. The unbreakable stainless steel interior and exterior keeps drink cool to the touch with hot liquids and sweat proof with cold liquids. The Leak Proof Mug has a Capacity of 16-ounce/.47L

Customer Reviews

Most Helpful Customer Reviews

477 of 480 people found the following review helpful:

5.0 out of 5 stars Finally, a GREAT Travel Mug, January 4, 2010

By 

R. Stanton (Outside Boston, MA USA) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Thermos Stainless King SK1005MB4 16-Ounce Leak-Proof Travel Mug, Midnight Blue (Kitchen)

I've been using travel mugs for years now and I've had some pretty good ones, but I've never had one that met all my criteria for a well designed travel mug until now. What makes this travel mug so great (and those that have been using travel mugs for a while will understand what I'm talking about) is:


- Keeps things HOT: This is travel mug 101, but not everyone does it well. This Thermos mug keeps my coffee hot for hours! Works exceeding well.

- Leak-Proof: This is another big one for me and this mug is indeed leak-proof. I filled it up and turned it upside down, shook it, rolled it, you name it, nothing leaked out.

- Cleaning: First, it's dishwasher safe; this is more uncommon than you would think. Second, you can take the lid apart to get at all the parts for cleaning so you don't get build-up in hard to reach corners of the lid over time, very nice! [NOTE: Paperwork that came with product said it was dishwasher safe, but on Thermos's web site (and Amazon product description) they specifically say NOT to put their "stainless steel vacuumware" products in the dishwasher and that they are NOT dishwasher safe. Not sure which is correct]

- Lid Design & Stainless Steel Lip: The stainless steel lip for sipping is more comfortable than plastic or rubber. Also, the design of the lid helps in preventing scalding hot liquid from getting to your mouth too fast.

- Doesn't have rubber smell: A rubbery smelling lid is a problem that is often overlooked and something I really don't like. This Thermos mug uses plastic, stainless steel and a rubber gasket in the lid. It doesn't have any smell when you drink from it, which is perfect!

- Build quality: It's built like a tank, in fact some may find it too heavy, but it's clearly well made.

- Shape and Size: It's a 16 oz mug, but what's nice is it will fit in a "standard cup" sized cup holder. I own a 2001 VW Passat and they are not known for their cup holders, but no problem with this mug. This, again, is often overlooked; just a great design.


The only thing I can't comment on about this travel mug is its durability over time, since I've only had it for a couple of weeks, but other than that it's the only travel mug I've ever owned that met or exceeded everything on my list of what I think "the perfect travel mug" should be.


This travel mug may not be for everyone. I love the midnight blue color and heft of this mug, but my wife prefers the shape, weight, and look of the stainless steel "Contigo" travel mug, which is also a very nice travel mug. The issues I had with the Contigo travel mug were: 1) doesn't fit in my car's cup holder, (2) no escape from hot liquid, much easier to burn your mouth, and (3) harder to clean.


This Thermos Stainless King travel mug gets my vote for the best and is well worth the $; can't recommend it enough!

118 of 120 people found the following review helpful:

5.0 out of 5 stars Holy Cow, this is a good mug!!!, January 25, 2010

By 

walterskk (Upstate SC) - See all my reviews

This review is from: Thermos Stainless King SK1005MB4 16-Ounce Leak-Proof Travel Mug, Midnight Blue (Kitchen)

I typically pour my coffee around 7:20am and by 8:45 it is ice cold and I never finish it. I have been through countless mugs, but none keep it warm, much less hot, for more than 45 minutes. I have been wanting a mug to keep my coffee hot for most of the morning, but my wife just said I drink it too slow. But along comes this king. WOW! This mug keeps my coffee hot, and I mean piping hot. I have made it to 11:45 with some coffee remaining and it was still very hot. I guess it would stay hot for an hour or two longer, but I never make it that long before I finish it. And the outside of the mug is cool / cold to the touch...you would never know it was hot inside.

Additionally, I wasn't really looking for a spill proof mug, but I have found it to be quite handy. I simply add creamer and sweetener, put on the lid and shake it up...100% leakproof. I even carry it in my bag. I coerced my wife to try it and she could not believe it. Needless to say, she bought one and we have thrown out the rest of our "wanna-be" coffee travel mugs. Totally worth the $$$.

21 of 21 people found the following review helpful:

2.0 out of 5 stars 5 stars for performance, 1 star because one fatal flaw, December 3, 2011

By 

B. Mann (Southwest United States) - See all my reviews
(VINE VOICE)    (REAL NAME)   

Amazon Verified Purchase

This review is from: Thermos Stainless King SK1005MB4 16-Ounce Leak-Proof Travel Mug, Midnight Blue (Kitchen)

(See picture gallery for photos)
I gave "two stars" because I have no idea how to average 5 stars for functionality, and 1 star for a fatal flaw that may not even apply to everyone. I have purchased two of these mugs from Amazon and owned them for two years. I must warn you about an issue that happened with both my mugs after about 6 months of use.

First, make no mistake - the functionality of the mug is superb. No springs to break down. The cap can be disassembled for a good cleaning. And hot? Wow. It keeps hot coffee HOT for hours and hours. I have left my mug in my car in 40 degree weather only to find the coffee still drinkably warm 6 hours later. On a warm day, my coffee is still hot when I get back to my car at the end of work 9 hours later!

Ah, but therein lies the rub -- leaving it in a hot car.

I do not know if it is the heat that builds up in the car, but with both mugs that I had purchased, within 6 months, the coating started to peel. Once the coating starts to peel, that's it, it's all over and your world becomes one of annoying paint flecks everywhere. Within a short time, you will have flakes of paint coming off in your hands or even worse, in your mouth.

I thought maybe this was a fluke with the first mug, which is why I bought the second one. But it happened with the second one as well. Why? I suspect it's because where I live in the Southwest, the interior of the car in summer gets to well over 120 degrees. I don't really know, but I know that it has happened with both mugs.

The only two options for me: scrape off all the remaining paint, or get a different product. As much as I love the function of this mug, after trying two of them, this one fatal flaw has forced me to take the second option.