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LAPASA Men's Ultra Heavyweight Thermal Underwear Set Extreme Cold Weather Base Layer Top Bottom Fleece Lined Long Johns M63

  • Based on 1,490 reviews
Condition: New
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Availability: Only 1 left in stock, order soon!
Fulfilled by Amazon

Arrives Wednesday, Feb 26
Order within 18 hours and 42 minutes
Available payment plans shown during checkout

Size: Large


Color: Dark Grey


Department ‏ : ‎ mens


Date First Available ‏ : ‎ June 16, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Feb 26

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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Top Amazon Reviews


  • Quality Heavyweight Thermal Underwear Set
I live in the upper Midwest and during the winter months I often spend time outdoors shoveling snow etc. and I need a good quality set of thermal underwear to get me through the cold days outside. Searching through the vast quantity of thermal underwear available on Amazon, I narrowed my search to this set of Lapasa Ultra Heavyweight Thermal Underwear. They come in a variety of colors, and I chose the Navy-Blue set. The first time I wore them I knew I found the right set. Not only are they very comfortable, but they are well insulated, warm and stretchy enough to perform physical activities in extremely cold environments. I wear size large for most clothing items, so I ordered a large set and they fit perfectly. Since this is an ultra-heavyweight set of underwear, they are probably too warm and thick for milder temperatures and physical activities but are very appropriate for extreme cold temperatures. Overall, they are a little pricey but well worth the investment. I’m very pleased with my Lapasa Ultra Heavyweight Thermal Underwear Set and recommend them to anyone searching for a high quality and comfortable set of extreme cold weather underwear. ... show more
Reviewed in the United States on April 4, 2024 by SoDak SoDak

  • You know those glasses cleaning cloths? It's like that but thicker
Much thicker at that. I received these before I had to head off to work, which was quite awesome because I didn't have to work in the outdoors for the 12 hour shift thinking of fire-places and heaters all day in the sub-zero weather. When I first put them on, they felt a bit snug, but these are a base layer, so it was to be expected, but as thick as these are compared to my waffle knit, it was something I had to get used to. I was noticing them for quite some time during my shift, but eventually grew numb to the feeling of being hugged by spandex. I felt like I was wearing a dive suit, but with a soft lining interior and fabric exterior. For the performance, they performed quite well, not quite the 3 layers of fleece blanketing next to the radiator that I was hoping for, but far exceeded wearing 2 sets of waffle knits just to put off the cold a bit longer. As I stood outside, I felt as if I should have been sipping on something from a mug clasped with both hands, but I don't really think a man should ever hold a mug with both hands ever, so I held mine with just the one. I stood outside for a good 2 hours without working up a shiver, and never even came close, I felt like i could go another 10 hours or more. I would say after 20-30 minutes, if you're not shivering, you're never going to, unless the wind is blowing... really... really... hard, or you're skydiving, which neither of those things were happening, a few gusts here and there, but these didn't break a sweat. Speaking of sweat, they do not get you really hot either, they do a fantastic job at regulating your body temperature, unless you're sitting in a heated cab, they aren't going to bake you. Some additional thoughts. I'm not going to remove a star over this, because everyone has a different shape and size. I went by the sizing guideline, and I was right there at the line of L and XL, me being 6'1" and 185lbs, my gut told me XL, but logic and research said L. I went with L. while the pants and main shirt area are just the right size, the sleeves seem to ride up my arms a bit. It feels like the sleeves came off a medium shirt while the rest were stitched as large. I have received comments on my rather long arms in the past, so it's definitely my body's problem, because for some reason, I've been given XL arms for my regular L body. If anyone want's to trade arms, let me know. ... show more
Reviewed in the United States on January 25, 2020 by Charles Burgess

  • Nice and warm
These are the thickest long johns I've found and really good prices. Would like it more if you could mix sizes. It only gave one size option to fix both top and bottoms.
Reviewed in the United States on December 17, 2024 by David Cullum

  • Extremely warm (and bulky)
Size: X-Large Color: Black
These are very bulky and warm. In fact, too bulky to wear under jeans or most of my other pants. However, they are very warm and I am able to wear them under my EMS uniform.
Reviewed in the United States on January 12, 2025 by Brian Gould

  • Warm and comfortable
Size: Large Color: Black
Very warm, I really like these.
Reviewed in the United States on January 7, 2025 by Richard Galie

  • Cold buster
Size: Large Color: Black
This will keep you warm! I live in San Diego CA, for the past few week, worked in Minooka IL, New Stanton PA and Silver Springs MD.. with temperatures near freezing. Did not feel the cold at all. Great buy!
Reviewed in the United States on January 18, 2025 by Amazon Customer

  • Comfortable and warm
I use these as my base layer for when I go camping in the cold. I am planning on using them throughout winter while I camp and snowmobile. They fit comfortably, and do not restrict my mobility. Being up in the mountains of Colorado, I am happy with how these have been working so far.
Reviewed in the United States on October 8, 2024 by Dillon Kennedy

  • Tops great, bottoms no so much
The top and bottom layers definitely keep you warm but the bottom layer does not have any elastic or drawstrings so they fall down easily.
Reviewed in the United States on January 8, 2025 by William

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