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Thermajane Long Johns Thermal Underwear for Women Fleece Lined Base Layer Pajama Set Cold Weather
Price: | $24.59$24.59 - $38.45$38.45
Free Returns on some sizes and colors
Select Size to see the return policy for the item |
US Regular
Brand Size | US Size | Bust (in) | Waist (in) | Hip (in) | Inseam (in) |
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XXS | 00 | 28 - 30 | 22 - 24 | 30 - 32 | 24 |
XS | 0-2 | 30 - 32 | 24 - 26 | 32 - 34 | 24.5 |
S | 4-6 | 32 - 34 | 26 - 28 | 34 - 36 | 25 |
M | 8-10 | 34 - 36 | 28 - 30 | 36 - 38 | 25.5 |
L | 12-14 | 36 - 38 | 30 - 32 | 38 - 40 | 26 |
XL | 14-16 | 38 - 40 | 32 - 34 | 40 - 42 | 26.5 |
2XL | 18 | 40 - 42 | 34 - 36 | 44 - 46 | 27 |
3XL | 20 | 42 - 44 | 36 - 38 | 46 - 48 | 27.5 |
Product details
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Fabric type92% Polyester, 8% Spandex
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Care instructionsMachine Wash
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OriginImported
About this item
- Heat Retention: Thermajane womens thermal underwear keeps your body heat from escaping. They provide extra warmth and coziness to make a perfect everyday baselayer.
- Ultra Soft: Our thermals for women are lined with fleece for extra softness against your skin. They’ll protect you from the cold for added comfort.
- Moisture Wicking: While at home or at work, our womens long johns will keep you dry and odor free. No matter the activity, you’ll stay confident all day.
- 4 Way Stretch: The soft and stretchable fabric on these womens long underwear fit snugly against your skin and will keep you moving freely no matter what your activity is.
- Layer Up: When it comes to style and comfort, our womens thermals is the ideal base layer to wear throughout your day.
Additional Details


From the brand

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Thermal Sets
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Women Thermal Collection
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Men Thermal Collection
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Kids Thermal Sets
Product Description



Check Out Our Thermal Wear
![]() Thermal Crew Neck Top | ![]() Thermal Pants | ![]() Thermal Crew Neck Set | ![]() Thermajohn Thermal Shirts | ![]() Thermal Pants | ![]() Thermal Set Girl's | ![]() Thermal Set Boy's | |
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Customer Reviews
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4.4 out of 5 stars 6,854
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4.4 out of 5 stars 4,387
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4.6 out of 5 stars 55,389
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4.4 out of 5 stars 7,445
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4.5 out of 5 stars 6,494
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4.6 out of 5 stars 2,891
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4.6 out of 5 stars 2,671
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Price
| — | $18.99$18.99 | $29.99$29.99 | — | — | — | — |
Neck Style
| Crew Neck | Long Pants | Crew Neck | Crew Neck | Long Pants | Crew Neck | Crew Neck |
Material
| 92% Polyester 8% Spandex | 92% Polyester 8% Spandex | 92% Polyester 8% Spandex | 92% Polyester 8% Spandex | 92% Polyester 8% Spandex | 92% Microfiber 8% Spandex | 92% Microfiber 8% Spandex |
Packing
| Top | Bottom | Top & Bottom | Top | Bottom | Set | Set |
Washing Instructions
| Machine Wash | Machine Wash | Machine Wash | Machine Wash | Machine Wash | Machine Wash | Machine Wash |
Size Range
| XXS-3XL | XXS-3XL | XS-4XL | XS-4XL | XS-4XL | XS-XL | XS-XL |
Product details
- Is Discontinued By Manufacturer : No
- Product Dimensions : 11 x 8 x 2 inches; 9.59 ounces
- Item model number : J-T-W-1836
- Department : womens
- Date First Available : June 29, 2017
- Manufacturer : Thermajane
- ASIN : B07JNRLRS8
- Best Sellers Rank: #5,960 in Clothing, Shoes & Jewelry (See Top 100 in Clothing, Shoes & Jewelry)
- Customer Reviews:
Videos
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Wrap yourself in warmth comfort starts with the right layer.Jenna
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Thermajane Long Johns - Watch before you buy!🟠🟢 LGJ Reviews 🟢🟠
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Watch This for How These Fit the Family!Mamas in the Chaos
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers find the thermal underwear comfortable and soft, with a generous fit that works well under regular clothes. The material quality receives positive feedback, with one customer noting it holds up well after washing, and customers appreciate its warmth without being bulky. They like the color, with one mentioning it's slimming, and find the weight perfect for their needs. Customers consider it good value for money.
AI-generated from the text of customer reviews
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Customers find the thermal pajama set comfortable, particularly noting the soft material and cozy fleece layer, with one customer mentioning it's breathable.
"I like these long Janes. Super tight but not uncomfortable. Lightweight and don’t add bulk (who needs THAT?)..." Read more
"Warm, soft, breathable, comfortable fit for my size and looks great on the body...." Read more
"...The fabric, which seems to be the same in and out is SO SOFT it feels like my whole body is being hugged by the lightest and fluffiest cloud...." Read more
"...I liked that they are not bulky at all and have a nice smooth feel to them. I bought my teen the set for men but the womens are better...." Read more
Customers find the thermal underwear set warm and snuggly, with one customer noting it's great for house use in winter, while another mentions it provides good insulation without being bulky.
"...I wore the set to bed and it was toasty warm. My husband is a hunter and recommended this brand as the best." Read more
"Warm, soft, breathable, comfortable fit for my size and looks great on the body...." Read more
"...Definitely NOT cold... but even if I get a little hot this fabric doesn't hold the hot in. This is EXACTLY what I needed and was looking for...." Read more
"...It was 40 degrees with a cold wind. They kept me nice and warm. I am 5'3 190 and the 2X fit nice, a XL may have worked too...." Read more
Customers are satisfied with how the thermal underwear fits, noting it is true to size and comfortable, with one customer mentioning it doesn't stick to clothes.
"Warm, soft, breathable, comfortable fit for my size and looks great on the body...." Read more
"...They are form fitting without being even the slightest bit tight...." Read more
"...They kept me nice and warm. I am 5'3 190 and the 2X fit nice, a XL may have worked too...." Read more
"...It’s like walking around in a warm hug. Perfect fit with material that stretches. I plan to buy another pair before next winter...." Read more
Customers appreciate the material quality of the base layer set, noting its high-quality design and great seam construction, with one customer mentioning it maintains its condition after washing.
"...I would recommend for the warmth, fit, soft feel, and overall make." Read more
"...were to buy again, I'd buy the women's set for my son bc the quality just seems better." Read more
"Kept me very warm but the top was a bit bibdibg" Read more
"...I plan to buy another pair before next winter. Fabric quality is excellent with a warm fleece lining. Great value for the price." Read more
Customers find the thermal underwear set to be of excellent quality, performing as expected and offering great functionality.
"...The fabric, which seems to be the same in and out is SO SOFT it feels like my whole body is being hugged by the lightest and fluffiest cloud...." Read more
"...the five-star rating, these would be even more comfy, warm, and functional for me -- and merit more than the maximum five stars -- if their leggings..." Read more
"...for running errands, or just lounging at home, this suit does the job beautifully. Highly recommend it!" Read more
"...Easy to layer and again, so SOFT! I have thick thighs and these are not prone to ripping either. Plain lovely." Read more
Customers like the color of the pajama set, finding it nice looking and well designed, with one customer specifically noting its slimming effect.
"...I ordered the pale pink. I think the top can look great peeking out of a shirt, no one needs to know it’s technically underwear...." Read more
"Warm, soft, breathable, comfortable fit for my size and looks great on the body...." Read more
"...Their lovely color palette is a bonus...." Read more
"...The top is really cute and could be worn as just a shirt if you get too hot and need to layer down...." Read more
Customers appreciate that the thermal underwear is not too heavy and doesn't add bulk, making it comfortable to wear.
"I like these long Janes. Super tight but not uncomfortable. Lightweight and don’t add bulk (who needs THAT?)..." Read more
"...The bottoms feel like a regular pair of leggings... except somehow LIGHTER and there was little to no extra fabric, yet somehow just enough to..." Read more
"...I liked that they are not bulky at all and have a nice smooth feel to them. I bought my teen the set for men but the womens are better...." Read more
"...Thermal Underwear provide cozy, cuddly, soft, stretchy warmth without much bulk...." Read more
Customers find the thermal underwear set to be good value for money, offering good quality for the price, with one customer noting it works well as a budget-friendly alternative to wool.
"...Truly great for the winter, easy to put on and a great value for the money...." Read more
"...Fabric quality is excellent with a warm fleece lining. Great value for the price." Read more
"...Overall these sets are a great value for the money." Read more
"...The quality of these base layers is definitely worth the price...." Read more
Reviews with images

The best thermals on a budget. Make sure to Air dry.
Top reviews from the United States
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- Reviewed in the United States on March 20, 2025Size: LargeStyle: CrewneckColor: Baby PinkVerified PurchaseI like these long Janes. Super tight but not uncomfortable. Lightweight and don’t add bulk (who needs THAT?) I bought for an upcoming trip to Ireland, which can be darn cold even in May.
I ordered the pale pink. I think the top can look great peeking out of a shirt, no one needs to know it’s technically underwear. Too tight to wear on its own, but some people (think 100 lbs, 5’6”) would look fantastic.
I wore the set to bed and it was toasty warm.
My husband is a hunter and recommended this brand as the best.
- Reviewed in the United States on March 14, 2025Size: X-LargeStyle: CrewneckColor: GreyVerified PurchaseWarm, soft, breathable, comfortable fit for my size and looks great on the body. It fits well throughout, even over my sizeable stomach, belly and bottom. Truly great for the winter, easy to put on and a great value for the money. Only one concern - it was slightly difficult to pull the pant legs on and off at the ankle area. However, with the many times this was worn, the stitching and hem at the pant leg did not pull or stretch. I would recommend for the warmth, fit, soft feel, and overall make.
- Reviewed in the United States on December 12, 2024Size: SmallStyle: CrewneckColor: NavyVerified PurchaseI am relatively a hot (temperature wise) person. I absolutely hate long sleeve shirts and I'll walk around with a tank top under a cardigan all winter. I've NEVER owned a pair of long John's in my entire 44 years of life. But last week I started experiencing cold biting through the arms of my cardigan INSTEAD of having to remove it because I'm sweating. I started getting so cold I couldn't get warm enough to fall asleep. After layering some pajama bottoms under my VS leggings and feeling that they were so tight like I was going to puke every time I sat down, I decided to get an Amazon and find myself my first pair of long underwear. My hopes and expectations were low. I searched and read, searched and read and searched some more. Everything I've ordered lately, I've had to send back and replace with a smaller size. I am super picky about my regular clothing and feel like every pair of jeans or leggings never fit in between my legs right. I'm constantly pulling up at my waistline so I don't look like a toddler with a full diaper. But I HATE that feeling when your clothes restrict your movement, or move down EVERY time you do ANYTHING. I didn't know what to expect, and after putting multiple items in my cart and taking them out I ended up with this set in a smaller size than Amazon recommended in the color navy. Did I prefer a lighter color to wear under lighter clothes? Sure, but navy was the only option that could be at my door, literally later that day. I was done with being cold. I was prepared to be disappointed.... not to mention I would STILL be cold so my hopes were down.
I don't know who designed these for women, but I am your number 1 super fan. I've never put something more comfortable on my body in my entire life! They are form fitting without being even the slightest bit tight. The bottoms feel like a regular pair of leggings... except somehow LIGHTER and there was little to no extra fabric, yet somehow just enough to cover all the space in between the top of my socks to right at my belly button. The fabric, which seems to be the same in and out is SO SOFT it feels like my whole body is being hugged by the lightest and fluffiest cloud. The top, let me tell you, I think my biggest hatred of today's clothing is that EVERYTHING seems to be working it's way more towards a crop top. I was pleased to put the top on and have the bottom sit way well below my underwear. I can't express how happy I am to have gotten these on my first try. I literally haven't taken them off since I got them yesterday. Not only have they held there stretch... I am staying at a very nice and warm temperature. Definitely NOT cold... but even if I get a little hot this fabric doesn't hold the hot in. This is EXACTLY what I needed and was looking for. I would recommend these to any woman and they will be the only brand and kind of long John's ill recommend... like ever. Now I'm just not looking forward to having to wash them. I guarantee I'll be putting them right back on!
- Reviewed in the United States on December 17, 2024Size: MediumStyle: CrewneckColor: RedVerified PurchaseHaving grown up in the Blizzard Belt of MA, I have dealt with many cold winters. I was desperately in need of some new long johns and read the reviews before buying, and they do not lie about the quality! I was impressed with the comfort, range of motion, fit, and how warm they kept me.
I am 5'10", 160lbs., have very long legs, and went with a Medium. The top fit perfectly; I liked the slight scoop neck because of it's comfort and ability to layer with, as well as the sleeves being long enough. The pants were long enough in the leg and fit great. However the rise on them was not as high as I would have liked and seemed more low than midrise. They worked, but were lower around my hips than the pants I had on over them.
Other than that, I recommend them and plan on buying another pair!
- Reviewed in the United States on March 21, 2025The "comfort food" equivalent of long underwear. Happy to report that Thermajane Long Johns Thermal Underwear provide cozy, cuddly, soft, stretchy warmth without much bulk. Outside texture is similar to sport performance fabric, albeit much softer, and inside texture is akin to a plush micro-microfleece. These work great as pajamas or in lieu of 'round-the-house sweats, and would also function well as underscrubs. Their lovely color palette is a bonus.
Despite the five-star rating, these would be even more comfy, warm, and functional for me -- and merit more than the maximum five stars -- if their leggings came to the waist instead of being cut to below-the-belly button.
- Reviewed in the United States on March 6, 2025Size: LargeStyle: CrewneckColor: RedVerified PurchaseThis set of long underwear is AMAZING. It’s like walking around in a warm hug. Perfect fit with material that stretches. I plan to buy another pair before next winter. Fabric quality is excellent with a warm fleece lining. Great value for the price.
- Reviewed in the United States on February 7, 2025Size: MediumStyle: CrewneckColor: PurpleVerified PurchaseOur family owns a lot of Thermajane and Thermajohn base layer sets. We have worn them while skiing, during various cold weather outdoor adventures, and I even wear them as wintertime pajamas. They are very breathable and I feel dry even during heavy activity in these base layers. They hold up well to repeated washing and remain soft. I wear a size 6/8 pant and the Medium fits great. My daughter is a 2 and she wears the Small. I'm only 5'1" but the pants are not TOO long - there's some extra material around the ankles but it's not bulky so I don't notice. I could see them being a little short if you are over 5'7", though. Overall these sets are a great value for the money.
Top reviews from other countries
- BerniceReviewed in Australia on January 9, 2024
5.0 out of 5 stars Warmth on cold rides
This has two purpose for me, one to wear to bed, the other I use it as thermal underwear when riding my motorcycle. Have tried correct thermal underwear, find them too tight and restrictive, prefer something a little looser fitting, easy to wash, dries quickly
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SalvadorReviewed in Mexico on January 14, 2025
5.0 out of 5 stars Calientito
Size: XX-LargeStyle: CrewneckColor: BlackVerified PurchaseEs fiel a la tabla de tallas. Es muy calientito, la tela es muy suave, es ligero, lo volvería a comprar 1000.
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GamalaReviewed in France on October 26, 2024
5.0 out of 5 stars Matière agréable
Size: MediumStyle: CrewneckColor: NavyVerified PurchaseParfait pour l'hiver ! Haut et bas très doux et bien chauds, idéals pour les journées froides. La matière est agréable sur la peau, et la chaleur est vraiment au rendez-vous.
- Mocanu MihaiReviewed in the United Arab Emirates on March 5, 2023
4.0 out of 5 stars Warm
Keeps you warm.
- AmandaReviewed in Australia on June 16, 2024
1.0 out of 5 stars Won't buy again
Small, not the colour shown in the picture, tag on the front not the back.