LAPASA Men's Thermal Underwear Bottom Long Johns Pants Base Layer Lightweight Midweight Heavyweight Cold Weather M10/M25/M56
Condition: New
Notify me when this product is back in stock
Buy Now, Pay Later
As low as
$7
/ mo
Learn more
- – 4-month term
- – No impact on credit
- – Instant approval decision
- – Secure and straightforward checkout
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
Unavailable
Recently Viewed
Team Name: Thermoflux 300 Heavyweight
Athlete: 1 Pack
Size: Medium
Color: Black
Item model number : M25
Department : mens
Date First Available : March 24, 2024
Best Sellers Rank: #247,055 in Clothing, Shoes & Jewelry (See Top 100 in Clothing, Shoes & Jewelry) #117 in Men's Thermal Underwear Bottoms
#117 in Men's Thermal Underwear Bottoms:
Customer Reviews: 4.6 4.6 out of 5 stars 7,237 ratings
Frequently asked questions
This product is currently out of stock. Please check back later for shipping info.
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Team Name: Thermoflux 300 Heavyweight
Athlete: 1 Pack
Size: Medium
Color: Black
I work for in transportation, so im outside almost always. For reference im 6 foot tall and weight 218 lbs. I ordered a medium and they fit perfect. Tight where they need to be and looser where we want them. They are warm, i ordered the thickest ones and so far they are holding up nice. Heads up fellas, wearing them you're gonna wanna use baby powder to prevent sweat stickage. All in all i feel confident in these but i suppose time will tell, will update in a month or so. Edit: just past the one month Mark. Ordered 2 More pairs. They didnt shrink when washing them and they are still as warm as ever.
...
show more
Reviewed in the United States on December 24, 2024 by Rich K.
People are different. Some may say I'm a baby, but who cares. I can take the heat, but not the cold. In the cold I feel as if my bones are going to break in half. Because I'm not use to the cold weather. So I really wanted to put this item to the test. So what I did was as soon as I opened the package, I washed it in warm water and put them into the dryer to see if they would shrink, and also to see how much of the fleece would come off on the dryer screen since I dried them inside out. There was only 6 tiny little lint particles. In the meantime, I took a shower because I didn't want to put them on while being uncleaned. So what I did was, I waited for the underwear to be completely cool not to be influenced by the warmth of the dryer I also waited for my body to reach room temperature not to be influenced by the warm shower, then what I did was I put them on over my boxers instead of putting them on by themselves like some have done. There was no warmth of the dryer it was cool to the touch like I wanted so that I could see for sure how well it keeps me warm. As soon as I put them on, there was a huge difference with the room temperature fleece against my body. They are smooth inside and out and without the waffle pattern that long johns have. According to the news, and my digital thermometer, the outdoor temperature 🌡️ was 51 degrees I also checked my car's outdoor temperature and the dashboard read 1 degree more at 52 degrees. For others this is nothing. But for me on a clear night without any cloud cover it's freezing. But NOT when I had them on. You see, when I went to the car to check the temperature on the dashboard, the only thing I had on was a long sleeve thermal shirt, a pair of boxer shorts, the heavyweight thermal fleeced long johns, slippers without wearing any socks, and my N95 mask. I wasn't embarrassed going out there with my long johns because they look like a pair of gym pants. Oh sure you know that they have a fly, but it looks so natural. Besides, it was covered by the length of the thermal shirt. No one would ever know. I could have went to the store etc. etc. They look like men's tights that they use at the gym. Anyway, while outside, My body didn't feel the cold. They really do work. The only thing that was cold was my ankles, feet, (since I had no socks on) the part of my face that was not covered by the mask, and my head. I then put on a pair of pants over the thermal long johns and went outside again to see the difference, and there was a huge difference. Obviously, I was even warmer. Great product. Thank you. G.C.
...
show more
Reviewed in the United States on November 11, 2020 by G.C.
Team Name: Thermoflux 100 Lightweight
Athlete: 2 Pack
Size: Large
Color: White 2 Pack
These are excellent thermal pants that fit great and feel really good on. I bought these for my husband in the color white and they look quite good. He said it fits exactly the way it should with no issues, he usually wears the size large and I purchased these in the size large. The material is super soft and stretchy, it's not thick at all. I am not sure what "fleece-lined" is supposed to be since I would assume fleece will add some bulk, the inner part of the thermal that touches the skin is softer and cotton cloth-like compared to the outer material but it does not even feel or look lined. My husband uses these thermal pants for work and he says they keep his legs warmer and more comfortable under his work pants. I would not hesitate repurchasing these, no problems at all.
...
show more
Reviewed in the United States on February 17, 2020 by Super Shopper
Team Name: Thermoflux 300 Heavyweight
Athlete: 1 Pack
Size: Medium
Color: Navy
I finally got around to replacing my (ashamedly too old) long johns. I wanted something that was COMFORTABLE but still plenty warm and made with quality. The previous good reviews were enough for me to take a gamble on these, and I'm SO GLAD I did! They are incredibly comfortable and seem very well made. Most importantly, they keep my legs plenty warm! I do a lot of upland bird hunting through the winter months, and I don't like to wear bulky snow pants. These kept me nice and warm on my coldest outing yet this year (granted it was a balmy 25°F). Hoping for the same results when it gets REALLY cold. The only confusing thing about ordering them is the "long length" sizes. According to the size chart, my waist calls for a Medium but my legs are long and I wanted to get the tallest pair I could. I couldn't tell for certain whether or not I actually got the "long" version, but they fit well enough that I don't see any need to waste time investigating further. I'm 190 @ 6'0" with about a 32" waist. These ride about 1-2" above my ankle bone. I wish they covered all the way to my ankle joint, but with a good pair of socks, there is plenty of coverage to keep me warm!
...
show more
Reviewed in the United States on November 21, 2019 by JR
I 'm a retired male 5' 8" 159 lbs, living in San Diego, California.I normally wear large, which fits just fine. For a snug fit sometimes I wear medium t- shirts and shirts.The Lapasa large thermal underwear pants are extremely comfortable to sleep in or wear around the house. The inner fleece is warm and smooth . The outside is very smooth with no issue with the rear seams. I don't feel those seams at all when wearing the pants.These are so light and comfortable that I use without any other layer under or over it, which I previously did with my old thermal underwear pants, because I don't heat up the entire house to save on my monthly utility bill.I recommend using these warm, high performance thermal pants because they work better and they fit properly using your regular size. Hope this helps you.
...
show more
Reviewed in the United States on February 21, 2020 by Cleveland E. Norton Jr.
Love the lined insulation. My husband works outside and they keep him warm. Fits great, have held up well with lots of wear. Love the color, texture, and thickness of the material.
Reviewed in the United States on February 1, 2025 by Me