Thermajohn Long Johns Thermal Underwear for Men Fleece Lined Base Layer Set for Cold Weather
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This item is eligible for return within 30 days of receipt
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Size: X-Small
Color: Black
Description
Thermajohn Long Johns Thermal Underwear for Men Fleece Lined Base Layer Set for Cold Weather (Medium, Navy)
Package Dimensions : 12.32 x 9.37 x 2.17 inches; 14.07 ounces
Department : mens
Date First Available : November 23, 2015
Manufacturer : Thermajohn
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within 30 days
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.
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Top Amazon Reviews
Size: X-Large
Color: Black
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.
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Reviewed in the United States on June 2, 2025 by Kjanes
Size: Small
Color: Black
Why did you pick this product vs others?: Bought this set for my husband to wear on a business trip. He loved them, said it was super comfortable and helped keep him warm in windy cold weather. Value for money: Great value for the cost.
Reviewed in the United States on July 2, 2025 by Kpip
Size: Large
Color: Navy
These pajamas keep me very warm all night and since I got them I have slept through the night for the past two weeks now. I haven’t done that in over 10 years. They’re light and soft and I can move around very easily. The price was very good also. The fit is good and they seem to be very durable so far. Glad I bought them.
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Reviewed in the United States on June 18, 2025 by Dave
Size: X-Large
Color: Black
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.
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Reviewed in the United States on May 24, 2025 by Joshua P Joshua P
Size: Medium
Color: Grey
Bought this thermal set for my teenage son who’s spending a semester in a cold country, and he loves them! He’s 5'9", 175 lbs, and the medium fits him perfectly—snug but not too tight. The fleece lining is super soft and keeps him warm without being bulky. Great as a base layer under pants and hoodies. Definitely a must-have for cold climates or winter travel!
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Reviewed in the United States on June 11, 2025 by SH
Size: X-Large
Color: Black
Why did you pick this product vs others?: My husband really like these. He said that they fit well and kept him warm.
Reviewed in the United States on June 30, 2025 by Carol L.
Size: Small
Color: Black
5'5" 165 and they fit well. waist band is thick, so it does not pinch. Great for cold marching band, frisbee, and overall New York weather
Reviewed in the United States on June 24, 2025 by Micah Goff
Size: Medium
Color: Black
My husband loves these! Comfy warm and very reasonable price
Reviewed in the United States on June 24, 2025 by Placeholder