Review: Thermik Handle For RTIC/YETI Tumblers


Back in January I wrote a review where I compared the RTIC 30-oz Tumbler to the YETI 30-oz Tumbler. (If you have not read that review you can read it here.) The response to that post has been out of this world. Never in my wildest dreams did I imagine it would get viewed and shared as many times as it has.

Due to the popularity of that review, Ryley, co-owner from Thermik, sent me an email and wondered if I would be interested in trying out the handle they sell that fits the RTIC/YETI Tumbler. All they asked is that I give an honest review here, at The Leighgendarium. I said sure, why not? So be warned . . . I received this product in exchange for an HONEST review.


Picture provided by Thermik

When I first bought my YETI, and eventually my RTIC, I never thought about buying a handle for it. Why would I need it? Yes, the tumblers are made of stainless steel . . . and yes, the 30-oz version can get a little heavy if loaded to the top with ice . . .  and yes, I grab the 30-oz tumbler near the bottom so it is easier to hold . . . and yes, it can sometimes feel a little slippery, but overall, the experience I have had with my YETI and RTIC Tumblers has been great. These tumblers are amazing and have now become my go-to cups. But do they really need a handle? Could Thermik change my mind?

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30-oz tumbler handle picture provided By Thermik

As I said, Ryley contacted me and asked if I would be interested in trying out the handle for the 30-oz tumbler. Before giving Ryley an answer, I decided to check out the reviews on Amazon. This product was getting some great reviews.

Next I decided to check out their website. I was very impressed with the site. It’s easy to navigate and very professional looking.

After checking out the reviews and website, I decided to reply to Ryley and let him know I was interested in trying out their handle for the 30-oz YETI/RTIC Tumbler. He quickly replied and had the handle shipped to me.

Of course I was excited when it arrived. I could not wait to try this out. I will admit, I was impressed once I opened it. The handle looked good, felt good, and it felt solid. It didn’t feel like cheap plastic that would break in a few months or crack under the weight of the cup. It felt like this product was made to last. The only thing left to do was try it out.

The handle is easy to put onto the cup:

Step 1) Hold Handle In One Hand.
Step 2) Pick Up Tumbler.
Step 3) Slide The Handle On From The Bottom Of The Tumbler.

Once I put it on, I made sure to put my hands on both sides of the handle and give it a slight lift up to make sure it was on there snug. I will admit though, I thought that it might not stay put. But it stays put with no problem.

As I got ready to write this review, Ryley sent me another message asking if I would be interested in trying the 20-oz handle as well. So of course I said yes.


20-oz tumbler handle picture provided By Thermik

The 20-oz handle is not as big as the 30-oz handle, but it feels solid. It is made with the same plastic material and feels just as good in the hand.

I love the look of the 20-oz handle better. I think it has to do with the handle being higher than the part that goes around the cup. It gives it a fierce look, in my opinion. I wish the 30-oz handle had that look also.

I have been using these handles for a while now and I’m thoroughly impressed. Not only is the handle very functional on the tumbler, it adds a little character in my opinion. The handle for the 30-oz tumbler feels great in my hand. It doesn’t seem too big or too small. I have two female coworkers who said it felt slightly big in their hands but my wife said if felt great in hers. In my opinion, this handle will feel great in anyone’s hand.

The handle does not bend under the weight of the 30-oz tumbler that is full of ice and water, which according to Thermik can weigh up to 3 lbs. I actually cannot imagine not having a handle on the 30-oz tumblers, now that I have used this handle.

I have been testing the 20-oz handle on my red YETI. I was curious if the handle would chip the paint any or leave any kind of scratches. As of today there are no scuff marks and no scratches. Once I take the handle off and clean the tumbler you cannot tell I even had a handle on there. I have been told that the tumblers are not dishwasher safe so I hand wash them, but the handles are dishwasher safe.

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Before getting these handles I was not convinced that I even needed them. It had never crossed my mind that I needed a handle for my tumblers. But Thermik has changed my mind. The handle is a great upgrade to the 30-oz tumbler. Dare I say necessary?

I do wish Thermik would change one thing; I wish they would make the handles in other colors. I think it would bring just that extra bit of personality to your cup. Most of the YETI and RTIC tumblers are silver, unless you pay extra from some place to paint them. If you could choose your handle color, I believe it would make your tumbler stick out in a sea of silver. I hope they allow this feature in the future.

The handles make it easy to pick up both tumblers and makes carrying them so simple. I cannot imagine my tumblers not having a handle on them now. Having the handle on the tumblers does not affect the fit in my car cup holders. They still fit in my cup holders with no problem. Thermik has a new customer and I will recommend their product to everyone who has a YETI or RTIC tumbler.

If you want to learn more about Thermik or buy their handle, you can visit their website here. The handles are $12.99 each, with free shipping once your order reaches $25. If you order only one handle, you are looking at about $4.85 to ship.

You can also get the handles from Amazon. The handles on Amazon are also $12.99. Of course shipping applies (around $5) unless you have Prime, and then it is free two-day shipping.

I compare the YETI Tumbler to the RTIC Tumbler here.

I just did a Reduce vs RTIC vs Ozark Trail review here.

What company creates the only belt I will wear? Find out what company and why here.


About leighgendarium

Preston Leigh, with the help of many in the indie community, is the founder of The Leighgendarium.

37 Responses to Review: Thermik Handle For RTIC/YETI Tumblers

  1. Preston,
    Thanks so much for doing this review for us. I can tell you really put some thought into it, and I appreciate that. You’re not the only one who wants to see to the Thermik handles in new colors. We are doing test runs this week, and hope to begin production next week in a selection of colors!

  2. I bought a Tervas handle (the larger size/double rings) at Bed, Bath and Beyond. It comes in many colors. It’s priced at $5.99 and you can use your 20% off coupon on it. Just FYI.

  3. Mr Leigh, I saw an interesting tumbler from Reduce last week. It is the reduce-1 and is a 34 oz stainless tumbler. I really like the lid. The lid is designed to allow you to drink like the Yeti, I have a Yeti, and also use a straw. Both openings are spill proof when closed. It looks like a Yeti or Rtic and is priced from $24.95 to $49.00, amazing. Anyhow I really like the lid on the Reduce-1. Just curious to know if you have looked at them.
    A. Rupard

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          I did look at it on Amazon but I did not buy it. The lid looks interesting. It could work and with both holes sealed when not drinking I could see the ice lasting a little longer too. I do know that the RTIC lid will fit a straw and they also have a spill proof lid that you can buy separate. In the long run it would be cheaper to buy the Reduce Tumbler if you want a spill proof lid because the RTIC spill proof lid is an extra $10.

          • I just bouth the Reduce Cold-1 34-ounce tumbler at a nearby Kroger supermarket, $29.95 before downloaded 5-dollar-off-$50 coupon and Senior discount.
            The 3-way lid mentioned on comments above, can be had from Reduce Everyday for $8.99 plus shipping. As of today, Aug. 11, they are out of stock until next week. Unlike everybody else, they can even sell you replacement gaskets separately, and the plug for the straw opening cover is removable and replaceable.

            The Reduce 3-way lid for the Cole-1 34-ounce tumbler fits very snugly on the Yeti, Ozark Trail, etc. tumblers, but it does fit. The yeti or Ozark Trail lids fit on the Reduce tumbler, but not quite as snugly as on their original models. I don’t think it would slip off in normal use, although it might come off it you dropped the Yeti or Ozark Trail from an average adult’s shoulder height.

            I talked with a guy named Patrick at Reduce and he told me they just finished a prototype handle for the Reduce Everyday Tumblers. It will be a design that is open at the bottom. He did not say when it might be ready for production and sale.

            I think most of the currently-available handles made for the Yeti, etc. tumblers would probably fit on the 34-ounce Reduce models, although they might not ride up quite as high as on the Yeti.

            At companies like RTIC, who have splash-resistant slide-closure lids, those lids are extra-cost options, or separate purchases. I think it would be really nice if you could pay a buck or two extra to have the slide-closure lid instead of the standarde one when you order their tumbler direct.

            Based on the calls I’ve made so far, only Reduce seems willing to sell and ship you the lid gasket separately. With everybody else, if the gasket gives out, you buy the whole replacement lid. If you happen to break your lid as some reviewers say they have, save that gasket before you return or throw out that busted lid.
            handle instea

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            Hey Brent, thanks for reading the blog and thanks for all the info. I did not know that about the gasket. That is very interesting. I agree about RTIC offering the splash-proof lid as an extra $1 or $2 add on.

  4. Thank you for your honest reviews…After receiving an offer from “Ibex” I wasn’t sure of what to purchase. I’m in the field everyday as a Hospice Chaplain winter and summer. These tumblers will save me money and provide that hot or cold drink .I’m going to purchase the RTIC tumbler withe the Thermik handle.I’ll let you know my outcome.

  5. I was wondering if your handle would fit a 34 oz tumbler made by Reduce. It looks very similar to the Yeti 30 oz. It’s just as good and cost less. I love the lid on this mug.

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      Hey Judy. Thanks for your question. Right now I cannot answer that. I am talking with Reduce about getting a tumbler for me to review. I am hopeful that they will. If so I will let you know as soon as it comes in.

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      Judy. I just received my Reduce 34 oz Tumbler today. I slid the handle on. So I will give you a complicated answer. Yes it fits. My tumbler is empty, no water or ice, since I need to wash it. The hand comes close to half way up the tumbler. I’m not sure if that would affect the way it is used. By that I don’t know if that means it would tip over on you while using it because of the weight of the ice and water. I will find out soon though. Starting to test tomorrow.

  6. I was wondering if you were able to determine if the 30 oz yeti handle worked for the reduce 34oz tumbler? I am a nanny and often have my hands full. I could really use a handle for my reduce tumbler. I eagerly await your answer.

    Thank you

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      I will double check it when I get home. It does go on from what I remember, but it sits a little lower than I would like. I do not believe it even comes up half way on the tumbler.

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          That is hard to say honestly. The problem is that the Reduce 34 oz Tumbler is wider than the YETI and RTIC tumblers. So any handle made for those won’t sit as high on the Reduce. I will email them and see if they have one they recommend.

          • Hey, gals and guys, stay tuned on this one!

            I talked with Patrick at Reduce yesterday, October 11, and he said they just worked up a prototype handle for the Reduce 34-ounce tumblers. He did not say when they might go into production and be ready for sale and shipping. It will be a single-ring design, open at the bottom.

            I have a few more remarks regarding various aspects of this thread, plus Preston Leigh’s other thread comparing Yetic and RTIC tumblers.

            I have a Yeti 30-ounce tumbler. It weighs 1 pound 0.1 ounce with the standard lid; the lid weighs 2.1 ounces separately.

            I have 4 Ozark Trail 30-ounce tumblers. The weights range from 1 pound 0.1 ounce to 1 pound 1.6 ounces; each of the lids weighs 2.1 ounces weighed separately.

            The Reduce Everyday Cool-1 34-ounce tumbler weighs 14.1 ounces. Its standard 3-in-1- sip/drink/gulp lid, without the included tritan straw, weights 3 ounces.

            I don’t have one of the 30-ounce RTIC tumblers.

            I would guess there should be no statistically significant differences in how long any of these tumblers would hold your drink cold or hot, or how fast the temperature would drop from hot or rise from cold over the test period, especially if you ran the comparison tests three or more times and took the averages from each run.

            Among 20-ounce tumblers that are similar, I have a Yeti, an Ozark Trail, and an RTIC. The Yeti and Ozark Trail models are the exact same size, dimensions and shape. Each weights 12.5 ounces with the standard lid, and each of the lids is 1.7 ounces weighed separately. In no way could I possible see any difference between these two in a test of hot or cold retension.

            The RTIC 20-ounce tumbler is lighter and shaped slightly differently from the other two. Its profile is more like a scaled-down version of the 30-ounce models. It weighs 2 ounces less than the other models, with its standard lid, 10.5 ounces. The standard lid weighs 1.3 ounces and feels thinner and flimsier than the lids on the other 2 20-ounce tumblers. The extra-cost option slide-closure lid for the RTIC 20-ounce tumbler weighs 1.5 ounces. It would not surprise me if the RTIC 20-ounce models trails slightly behind the Ozark Trail and the Yeti competition in head-to-head tests of how long they keep their cold or their hot, and how they depart over the extent of the test run in temperature variation.

            I also have a Bubba 32-ounce straw/lid tumbler which is a bit slimmer and taller than the Yeti and the Ozark trail 30-ounce models. Its lid is also very slightly heavier, weighed without its included tritan straw.

            In addition to those, I also have 24-ounce Contigo and Bubba models, and a 20-ounce Contigo tumbler. The Contigo models come with various lid designs with different types of closure mechanisms–sliders, “snap seal”, rotating covers, push-button mechanisms, etc. and they come in sizes ranging in four-ounce increments from 12- to 24 ounces. Some are tumblers, and some are mugs, with handles. They test and compare well in performance, durability, and especially price, compared to their more expensive competitors.
            I tried to get a 30-ounce Seriously Ice Cold Glacier tumblers. Unfortunately, while I could read the information on the webside, the “screen reader” software that lets my blind self access my computer’s output did not properly show the buttons and links to let me see the descriptions and prices of each individual model, to go to the shop links, or even find a local retailer. Emails back and forth to the principals of the company produced little more than whins about how they are a small company and try to spend their resources on providing a good product for the customer, (apparently instead of good web-design practices and customer support and service). Their claim that their tumblers have heavier and thicker steel than their competitors was one thing that attracted me to their product in the first place, as well as the word-plays puns, and double-entrendre on the Acronym “SIC”.

            The SIC 30-ounce Glacier tumbler is priced around $29.99. While I’ve seen some positive reviews, I have not yet found a head-to-head comparison between the SIC model and any of the others we’ve been discussing here.

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            Hello Brent. Thanks for your remarks. I emailed Reduce the other day and I still have not heard back from them about the handle. I hope you are correct.

            I am currently testing the RTIC vs Ozark Trail vs Reduce. I thought I would have that review up by now but I was actually a little surprised at something that is requiring me to test for a few more days. So hopefully next week.

            I check out the SIC Tumblers. When you buy them it just takes you to Amazon. The lids look just like the RTIC lid so I am assuming the tumbler is the same.

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            Also with the SIC Tumblers, they say they use the 18/8 Stainless steel and I believe all the other tumblers I have are the same: RTIC, Ozark Trail, Reduce, and YETI. SIC does have a lifetime warranty, but so does Ozark and Reduce. Just like a lot of other places, the lifetime warranty does not cover scratches, dents, or dings. The one plus I see to them is that they offer different colors. I think that is cool.

  7. Hi Preston: I await that review and comparison among the various models of our discussion victims here.

    I have not yet used the Reduce Everyday Cold-1 34-ounce tumbler yet, haven’t even washed it. I do have some observations you might consider, because they could affect any differences you might find.

    Construction: The Yeti and the Ozark Trail 30-ounce models have seamless castings along the body, inside and out. My Reduce Cold-1 34-ounce, and my Bubba 32-ounce straw-lid tumbler do have a seam donw the inside where the inside steel layer was either crimped or welded. I prefer the seamless design.

    The Reduce Cold-1 weighs 14.1 to 14.2 ounces with its 3-in-1 lid, (weighed without the included tritan co-polymer straw). It is just a tad wider than the Yeti or Ozark trail models and about an inch taller. The Cold-1’s lid fits nice and snug in the Yeti and Ozark Trail; the Yeti and Ozark Trail lids fit the Cold-1 but not as tight in their original mugs.

    A little over 10-percent more volume and the slightly different shap might help the Cold-1 in heat or cold retension; but its lighter weight and thinner wals will probably let it down in comparison to the Yeti or Ozark Trail models.

    The best thing about the Reduce Cold-1 is its 3-ounce tritan co-polymer lid with a snap down closure and separate snap-down closure for the included wide tritan straw. The lids on the 30-ounce Ozark Trail and Yeti models each weigh 2.1 ounces. The lid on the 32-ounce Bubba weighs 2.4 ounces.

    I am seriously thinking about returning the Reduce Cold-1 and then buying several of their lids and straws to enhance the Ozark Trail and Yeti models, including the ones I bought for gifting.

    If you are near a Costco, they have the Reduce 34-ounce tumblers for $22.+some change as opposed to the usual $29.99 that I payed at at my nearby Kroger supermarket.

    Earlier today, I mentioned my experience with Seriously Ice Cold (SIC) and how it was not very positive. By comparison, I picked up the phone and called Thermik USA. After making my selection from the automated introductory menu, the young kid-sounding guy who picked up on the other end was Ryley Lyon. We talked a bit. They had just sold out of most handles, having only a good number of the black ones left. I order one each for the 30- and 20-ounce tumblers. I told him that if I like them, in a week or so, I might come back for more handles. I might also spring for his 10-ounce lowball tumbler, since that’s the size I don’t yet have.

    I have mentioned how the weight varies just a little bit among these various models of tumblers, even though the same size lids (Ozark Trail and Yeti specifically) weigh the same. A heavier tumbler where everything else is equal must have slightly more metal, steel and/or copper lining, and the heavier one should test out slightly better in the heat or cold retension test, not to mention any torture testing you might do.

    Definitely let us know what you find as you do your knock-heads comparison testing. I don’t have either the time or the money to run much of that testing myself.

    I do know that one test will not tell you much that is really meaningful. I two separate tests of my Yeti 30-ounce tumbler with hot coffee, the cup held its heat longer and cooled more slowly by a small amount than in the seconde test run with the same cup under the same conditions, using the same methods.

    I would say, run your tests at least three times if you can. You know that, in clinical trials, or any other scientific testing methods, the gold standard of efficacy is that the same test under the same parameters and conditions should be repeatable by other testers with, hopefully, the same results and outcomes.

    • Looking back at the first review that started this thread, I’d have to say I mostly agree about the size and the difference between the handles for the 20-ounce and the 30-ounce tumblers. I think if the 30-ounce tumbler handle was higher above the ring, like the 20-ounce model handle, it would be higher toward the top and give a little more leverage on the heavier 30-ounce tumbler when it’s full of ice and liquid. I have large hands, so when holding it, my knuckles are really close to the cup and the pinkie finger needs a place to rest. The top of the ring and handle ride just under 2 inches from the bottom of the lid. The width and shape of the wide ring will probably obscure a good bit of any design or monogramming you might have added to the tumbler. It was a low-rider on the Yeti and the Ozark Trail tumblers. It goes almost to the top on the taller, more slender Bubba Envy 32-ounce stainless steel tumbler, so that’s the one where this handle is going to live. The 20-ounce tumbler version’s ring still fits near the middle, but because of its higher stance above the top of the ring, it ends up being positioned more closely where it should be on Yeti, Ozark Trail, and RTIC tumblers, being closer to the top on the RTIC. Don’t even think about the Thermik for 30-ounce tumblers as a solution for the Reduce 34-ounce models; they have a wider diameter than the 30-ounce models.

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            I do not. Do you have one of these? They make some strong claims and are even more expensive than other brands (even YETI). But I do not see the difference in them vs YETI or RTIC or Ozark Trail or Reduce.

            As for if the handle will fit? I am not sure. Their website does not show the dimensions of the tumbler. Sorry I cannot be more help.

  8. I have the Thremik handle and the 34 oz. cold 1 tumbler. The handle fits but doesn’t go up past half way, not high enough. So being handy I started to try to make it fit. I cut the ring on my handle allowing it to open more. After figured what gap I wanted I cut the head off a small nail and heated it up with a torch. Melting the nail in on both side and allowed to cool, thus holding the ring at the gap I wanted. Then I bough some JB WELD, which is a epoxy type putty that you mix together. Molded it into the gap and it is drying now! I had all the parts so this experiment didn’t cost me anything. Like said above the COLD 1 tumbler is 34 oz, so it is bigger at the opening. The Cold 1 lid does fit my old Grizzly and Yeti cup! This seems to be the best made lid.

      • It worked great! The handle fits perfectly, so I have my perfect cup! The best lid with straw and the best handle that now fits! The cup is average and keeps ice as long as my Yeti! The secret I use is to make my own ice. The bigger the cubes the longer they last!

        • Btw I purchase my cup at my local Kroger for $17.99, way less than my Yeti and Grizzly! The Grizzly looks cool with molded fingers in the steel and black power coat but is melted by morning!!

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            Hey Damon. That is awesome your handle worked. My brother has some 30 oz tumblers and I believe he uses ice balls, the kind people normally put in their alcoholic drinks. I wonder how well that really works.

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