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🔥 Elevate your winter game with Thermajohn – warmth meets sleek comfort!
Thermajohn Men's J-t-m-1836 long johns combine advanced heat retention, ultra-soft fleece lining, and moisture-wicking breathable fabric with 4-way stretch for ultimate comfort and mobility. Ideal as a base layer for cold weather, these thermals keep you warm, dry, and comfortable all day long.

| Asin | B0CPRQ63XV |
| Best Sellers Rank | #104 in Men's Thermal Underwear |
| Date First Available | November 23, 2015 |
| Department | mens |
| Manufacturer | Thermajohn |
| Package Dimensions | 12.32 x 9.37 x 2.17 inches; 14.07 ounces |
User
5-Star Review for Thermajohn Long Johns – AKA My Cold Weather Survival Suit
I never thought I’d be this emotionally attached to a pair of long johns, but here we are. The Thermajohn Thermal Underwear Set is like a warm hug from a teddy bear who also happens to be a professional insulation expert. Seriously—this fleece-lined base layer has no business being this cozy.I put them on during a cold snap and haven’t looked back since. I’ve worn them under jeans, joggers, and even pajama pants (don’t judge me). I’d wear them to work if I could. They’re warm but not bulky, stretchy without being saggy, and soft enough to make you question every other piece of clothing you own.Also, shoutout to the waistband for staying in place and not playing “let’s roll down every 10 minutes.” These long johns understood the assignment.If you’re looking to brave the cold while feeling like a warm cinnamon roll, these are it. Buy them. Your frozen thighs will thank you.
User
Solid material
I work in a warehouse that ranges from -20 degrees Fahrenheit to around 40 degrees. It’s cold in there. I’m picking ice cream and meat or produce and groceries in the freezing arctic cold. These were my savior of cold aches after my shift. My joints would be all cranky after the shift but no more. These keep me nice and warm, and honestly maybe a little too warm at times if I’ve had too much caffeine. Don’t restrict my movement at all, and they’re super low key. I should’ve bought a large though: I have a large torso but a short build. I’m 5’10” and my torso is a little bit longer than others, making my legs just a little short in comparison. The legs were also just barely not long enough for my liking but no discomfort. Overall great buy, functions well, and I will continue to use this baby to stay warm
User
RELAXING FIT.
COMFORTABLE
User
Soft and Warm
We purchased two sizes for my 12 year old son (5'6", 115 lbs), a small and a medium, to use on a July camping trip in central Idaho. We didn't end up taking them with us so I can't speak to how warm they are at colder temps.He tried on the Medium and the shirt and pants are slightly loose on him - the shirt much more so - and the pants are a little short (go to just above his ankle) but they will probably fit better in the fall/winter when he needs them the most. He will likely use them as pajamas and for the occasional snow storm in the PNW where we live. We didn't bother taking the size small out of the package. I imagine the small would have been more snug on him but the pants may have been too short. We opted to size up because he's growing so fast.His feedback is that they are very soft and comfortable and when he lifts his knees, the pants stay put and don't ride up his calves/shins. He's excited to wear them when the weather gets cold.Four stars for fit and comfort, can't speak to how warm they are in actual cold weather. He's as big as me though, and I'll probably steal them from him when he grows out of them.
User
La talla quedó perfecta, justo lo que esperaba
Me sorprendió para bien. La talla coincide perfectamente con la medida indicada y me quedó justo como esperaba, sin quedar demasiado ajustada ni demasiado floja. Se siente cómoda y el ajuste es muy bueno. Para las personas que viven en el frío o que piensan viajar para conocer la nieve está perfecta. Yo la uso para trabajar y en el trabajo hay que quitársela si ponen la calefacción porque sientes demasiado calor con ella puesta. Definitivamente fue una buena compra y volvería a pedirla.
User
Good price for what it is - the white ones run small
I bought one black pair originally. I’m 5’6 and around 150lbs. The small size fit me really well even with having a broader chest than the size chart indicated.I use these for staying a bit warmer around the house during the winter and they work well for that, I can def tell a difference.I ordered 4 more pairs so I wouldn’t have to wash them as frequently. I noticed that the black and blue fit me nicely while the white runs a tad small. They still fit but just a little snug and I’d probably order a size up in that color.Overall, these are a great buy especially when on sale. They are at the upper end of quality for this price range. I ordered some more expensive ones that work better for going outside in colder temps but ya get what ya pay for.
User
i Can't Believe What I've been missing!
I can't believe what I've been missing. These thermals are fantastic and if you're a previous owner of the square pattern type thermals then you MUST upgrade. It' been quite a few years since I invested in thermal wear and then it was sport specific for mountain bike racing. I'm talking $300 a pop per garment. I'm out of that game and hope never to spend a fortune again for that heat thermal clothing.Back to the thick of the conversation which was the review. How do they size? They come true to fit. They are skin tight which is what you want. If you are complaining because they don't fit loose like your normal clothes ask one of your cool friends in the know. I will say the one thing that I noticed is that I can pull the shirt all the way down to the top of my quads, but after a few 30 minutes or so the shirt has managed to ride up to above my abdomen. Not a deal breaker. I believe proper thermal wear etiquette requires you to tuck the shirt inside the waistband of the johns. Another plus is the micro-fleece layer inside thermals, man the microfleece is absolute heaven against your skin. For the micro-fleece feeling alone I will buy 10 more - so I don't have to do laundry. As far as temperature retention, It was 35F the other day and I spent the whole day outside with minimal layers - I wanted to test the low temperature rating on the coldest day so far - and I can attest to Thermajohn's ability to keep me toasty. I know many of you are saying, "Well I live where it's' colder than 30F, or some of you my say screw you I live in places so cold it's subzero". well to all of you I say, buy the thermajohn's and make them the first cozy layer against your skin and then proceed with your cold weather ritual, or go crazy and buy lots of new winter clothing.
User
Okay
It's good for what it does, but the fabric is too smooth or tight and it keeps catching on to the skin and makes it very uncomfortable sometimes. Also sometimes gets a little too hot
User
Not warm… its kind of fleece
Size is good.. but is not warm enough… it’s basically just a fleece type
User
Buena, no excelente
El producto es calientito y cómodo, pero ya desde los primeros días es notorio que la tela se le hacen bolitas.
User
Muy bien
Muy buena! Mantiene el calor , bien a la talla
User
Ropa térmica.
Ropa comprada para regalo y la opinión de quién lo recibió es que le agradaron mucho pues la tela es suave.
User
مريه وما تسبب حكه وجوتها عاليه وغير انها مرره تدفي
مريه وما تسبب حكه وجوتها عاليه وغير انها مرره تدفي
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