Thermajohn Long Johns Thermal Underwear for Men Fleece Lined Base Layer Set for Cold Weather

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.

Bought these for a spring camping trip with 30 degree nights / 40 degree days & raining throughout. Kept me very warm - great base layer/layering. Very comfortable and soft, fits well. So glad I had them!

Went skiing and needed something warm. This did the trick and kept me almost sweating under my jacket and hoodie. Very warm and great quality! Super comfy and cleans easy.

Very warm. I recommend these thermals for temperatures well below freezing. I was too warm skiing with these and one other thin layer at roughly 0 deg C. My only complaint is that the material showed signs of wear after just one use. Lots of raises fibers on the breast. It’s purely a cosmetic issue for now, so I can’t speak to the product’s longevity.

Son does carts in the winter in MN so needed something warm to wear under clothes (because snow pants aren't cool). These were so nice I purchased a pair for myself too. Love the fleece lining, washes up well and doesn't shrink. Great value and functionality.

They are very firm fitting and they are very warm. I bought these to use under my pants and shirt for motorcycle riding in cooler temps. They work great and they are very comfortable:)

I always wear it under my clothes when it's cold.

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