Rocky Thermal Underwear for Men, Long Johns Fleece Lined Set, Shirt & Pants, Base Layer w/Leggings/Bottoms Ski/Extreme Cold

4.4 out of 5 stars 15,462 ratings

Price: $9.99 $54.98 Free Returns on some sizes and colors
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Team Name: One Pack
Athlete: Light Weight (165 GSM)
Size: Select Size
Size Chart
US Thermal Underwear Base Layers
Brand SizeChest (in)Waist (in)Hip (in)Inseam (in)
Small35 - 3729 - 313729.1
Medium38 - 4032 - 344029.9
Large41 - 4335 - 374330.7
X-Large44 - 4638 - 404631.4
XX-Large47 - 4941 - 435032.2
3X-Large50 - 5244 - 465333.1
4X-Large52 - 5447 - 495633.8
5X-Large54 - 5650 - 525934.6
6X-Large56 - 5853 - 556235.4

Product details

  • Fabric type
    90% Polyester, 10% Spandex
  • Care instructions
    Machine Wash
  • Origin
    Made in the USA and Imported

About this item

  • STAY-PUT DESIGN: Oversized jackets? Check. Bulky sweaters? Double check. Cargo pants loaded with all the essentials? Yup, even them. No matter how heavy your outer layers are, our men’s thermal underwear stays put under even the heaviest loads.
  • KEEP WARM AND DRY: Ultra soft fleece lining insulated underwear combined with moisture-wicking power can only mean one thing: You’re wearing Rocky longjohns for men thermals. No more sweaty, shivering nights — just warm thermal clothes for men, toasty goodness that wraps you in whole body-comfort.
  • ALL-DAY COMFORT: From morning jogs in freezing temps to chilly winter nights, our underoos mens long johns thermal set are designed to keep you comfortable and warm all day long. With soft fabric that’s lightweight yet warm, it’s the anti-chafing underwear men crave.
  • LIGHT/MID/HEAVY OPTIONS: When you’re an active dude, you need Mens long underwear. Mens thermal underwear set that take on anything the day throws at you. Choose the light set for nippy mornings, standard for versatile layering options, or heavy for all-day activity in blistering temps.
  • THERMALS MEN LOVE: Equipped with a luxurious contour pouch that keeps your important bits comfy and a vertical quick-draw fly for grab-and-go bathroom breaks, our fleece long johns for men are crafted to cater to the modern gentleman.

Additional Details

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From the brand


Product Description

Elastic Waistband

Elastic Waistband

Quick-Draw Fly

Quick-Draw Fly

Premium Stitching

Premium Stitching

Moisture Wicking Fibers

Moisture Wicking Fibers

Boys onesie pajamas

Rocky Product Recommendations...

Men's Thermal Tops

Men's Zip-up Pullover

Face Mask Shirt

Men's Thermal Bottoms

Women's Thermal Underwear

Boy's Thermal Underwear

Girl's Thermal Underwear

Customer Reviews
3.5 out of 5 stars 2
4.4 out of 5 stars 39
4.4 out of 5 stars 240
4.5 out of 5 stars 631
4.4 out of 5 stars 5,911
4.5 out of 5 stars 5,417
4.4 out of 5 stars 5,460
Price
$17.99 $17.99 $23.49
Gender
Men's Men's Unisex Men's Women's Boy's Girl's
Size
Small - 6X-Large Small - 3X-Large Small - 3X-Large Small - 6X-Large X-Small - 3X-Large XX-Small - X-Large XX-Small - X-Large
Variation
23 Colors/Patterns 3 Colors/Patterns 3 Colors/Patterns 23 Colors/Patterns 24 Colors/Patterns 23 Colors/Patterns 34 Colors/Patterns
Fabric
Moisture Wicking Fabric Moisture Wicking Fabric Moisture Wicking Fabric Moisture Wicking Fabric Moisture Wicking Fabric Moisture Wicking Fabric Moisture Wicking Fabric
Feature
Snug Stay-Put-Fit Snug Stay-Put-Fit Snug Stay-Put-Fit Anti-Squeeze Elastic Waistband Snug Stay-Put-Fit Snug Stay-Put-Fit Snug Stay-Put-Fit

Rocky Product Recommendations...

Pet Thermals

Men's Boxer Briefs

Men's Boxer Briefs Cotton

Men's Solid Tube Socks

Men's Striped Tube Socks

Thermal Socks

Kid's Onesie Jumpsuit

Customer Reviews
3.8 out of 5 stars 66
4.5 out of 5 stars 2,013
4.2 out of 5 stars 619
3.9 out of 5 stars 924
3.9 out of 5 stars 1,610
3.9 out of 5 stars 40
3.9 out of 5 stars 457
Price
$19.99 $14.99 $19.99
Gender
Pets Men's Men's Men's Men's Unisex Unisex
Size
XX-Small - X-Large Small - 3X-Large Small - 3X One Size 9 - 15 One size XX-Small - 3X
Variation
17 Colors/Patterns 12 Colors/Patterns 12 Colors/Patterns 3 Colors/Patterns 3 Colors/Patterns 4 Colors/Patterns 9 Colors/Patterns
Fabric
Moisture Wicking Fabric Breath Easy 95% Cotton Cotton Poly Blend 90% Cotton 90% Cotton Breath Easy
Feature
Snug Stay-Put-Fit Snug Stay-Put-Fit Snug Stay-Put-Fit Soft Seam Toe Snug Stay-Put-Fit Snug Stay-Put-Fit Snug Stay-Put-Fit

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Package Dimensions ‏ : ‎ 11.38 x 9.88 x 1.93 inches; 3.52 ounces
  • Item model number ‏ : ‎ 108S-C
  • Department ‏ : ‎ mens
  • Date First Available ‏ : ‎ May 8, 2014
  • ASIN ‏ : ‎ B00K7IR0J4
  • Customer Reviews:
    4.4 out of 5 stars 15,462 ratings

Customer reviews

4.4 out of 5 stars
15,462 global ratings

Review this product

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Customers say

Customers find the thermal underwear keeps them warm in cold weather and appreciate its soft, fleece-like interior. The quality is good with nice fabric, and customers consider it good value for the price. However, the fit receives mixed feedback, with some finding it perfect while others say it's too tight through the legs. Moreover, the material thickness is criticized as thin, and seam durability is poor with reports of stitching coming apart quickly.

AI-generated from the text of customer reviews

1,122 customers mention "Warmth"1,020 positive102 negative

Customers find the thermal underwear set keeps them warm, particularly in extremely cold weather, with one customer noting it works well in humid conditions without overheating.

"...The rest of me stayed comfortably warm in the 40° water, even though the drysuit itself didn't do much for warmth, it just kept me dry. **..." Read more

"Soft and comfortable warm and cozy. Fit like a glove." Read more

"...She did, and she loved the color and the warmth. Even though the top part is too small, the upper part is just right...." Read more

"Kept warm without being sweaty" Read more

866 customers mention "Comfort"811 positive55 negative

Customers find the thermal underwear comfortable and incredibly soft on the skin, with a light fleece lining inside. One customer mentions it's relaxed enough to wear casually around the house.

"...The Fleece lining is very comfortable against my skin. I wear this under my drysuit. While in the water I found the sleeve of my drysuit had a leak...." Read more

"Soft and comfortable warm and cozy. Fit like a glove." Read more

"...Quality-made and soft on your skin. Great value for the price and would recommend them to anyone needing them for the cold winter months...." Read more

"Warm and comfortable" Read more

829 customers mention "Quality"756 positive73 negative

Customers find the thermal underwear set to be of excellent quality, with nice fabric that holds up well over time.

"...Quality-made and soft on your skin. Great value for the price and would recommend them to anyone needing them for the cold winter months...." Read more

"The product seems fine, haven't used it yet...." Read more

"...Quality looks good will see how it holds up after a few washings." Read more

"Nice but size smaller than regular U.S. sizes u may want to go up a size., my person is on the heavier side...." Read more

272 customers mention "Value for money"219 positive53 negative

Customers find the thermal underwear set to be good value for money, describing it as a solid product and great for the price, with one customer noting it works better than high-priced brands.

"...Overall, this was a great buy and a much cheaper option than other base layers. I would definitely purchase this one again!..." Read more

"...Quality-made and soft on your skin. Great value for the price and would recommend them to anyone needing them for the cold winter months...." Read more

"Price is great for two pairs and the thermos was warm for my ski trip!" Read more

"It was a good price and good quality" Read more

120 customers mention "Color"114 positive6 negative

Customers like the color of the thermal set, describing it as nice-looking and perfect, with one customer specifically mentioning the Kentucky blue shade.

"...She did, and she loved the color and the warmth. Even though the top part is too small, the upper part is just right...." Read more

"Really cool they glow in the dark, a little on the thin side if you live in a cold climate, true to size." Read more

"These are really nice-looking and soft, just too large." Read more

"Look, fit, softness all perfect !" Read more

1,661 customers mention "Fit"903 positive758 negative

Customers have mixed experiences with how the thermal underwear set fits, with some finding the XXL size comfortable while others report it runs too small.

"Soft and comfortable warm and cozy. Fit like a glove." Read more

"...50 inch chest, XXL fits well and comfortable, though the sleeves and legs are a bit long. Not a big deal, they can be bunched up...." Read more

"...I have a large, barrel chest and matching stomach, but the XXL’s fit well. I’d buy them again." Read more

"...Even though the top part is too small, the upper part is just right. So we are going to keep the bottom part and give away the upper part...." Read more

208 customers mention "Seam quality"0 positive208 negative

Customers report significant issues with the seams of the thermal underwear set, noting that they come apart within the first day of use, with hems at the legs and wrists being particularly problematic.

"Great fitting and warm thermals. Stitching started to go after first wash on one pair" Read more

"The first pair ripped in a place on the waist, I sewed it back and hope it last my husband loved the feel of them so I ordered another pair" Read more

"...Then less than a month later, it stopped running! So I still don't have a working watch. I updated my review...." Read more

"...was a ~1cm hole at the bottom seam of the crotch, and two bad seams on the shirt that will likely fray or tear...." Read more

172 customers mention "Material thickness"35 positive137 negative

Customers have mixed opinions about the material thickness of the thermal set, with some appreciating that it feels like a thick pair of pajamas, while others find it too thin.

"...I find the fabric is a bit thin, so it does not provide a lot of warmth, but enough to keep you warm when it's a bit cold...." Read more

"Despite the seemingly thin density of the fabric, these really did the job keeping me warm during an Alaska fishing trip." Read more

"...are that they are fleece lined, making them somewhat thicker than other similar thermals, and the stitching is haphazard with hanging threads and..." Read more

"...The first day I wore these heavyweight long johns, I noticed a significant difference in how my legs and torso felt...." Read more

Great item
4 out of 5 stars
Great item
Very comfortable light weight but keeps me warm on cold night
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Top reviews from the United States

  • Reviewed in the United States on February 25, 2022
    Team Name: One PackAthlete: Standard Weight (185 GSM)Size: XX-LargeColor: BlackVerified Purchase
    First, I'm 5'7", 250 lbs, 38-40 waist, 50 inch chest, XXL fits well and comfortable, though the sleeves and legs are a bit long. Not a big deal, they can be bunched up.

    The Fleece lining is very comfortable against my skin. I wear this under my drysuit. While in the water I found the sleeve of my drysuit had a leak. As the cold water came in, the sleeve of this base layer got pretty wet. The wet sleeve felt cold, but it still kept me fairly warm and didn't absorb much of the water, helping me to stay warm. The rest of me stayed comfortably warm in the 40° water, even though the drysuit itself didn't do much for warmth, it just kept me dry.

    **UPDATE** I have now worn this for three sessions of rolling practice in my kayak. I still have a small pinhole leak somewhere in the back panel of my drysuit, but it doesn't leak too much so I don't worry about it. This baselayer is still keeping me warm as the only thing I'm wearing under my drysuit in 45°f water, even when slightly damp. This isn't just while sitting inside the kayak, but also while submerged upside down and while swimming during a wet exit. This really is a great mid weight base layer, and one that any kayaker should consider for under their drysuit! If you're going to be in water any colder than this though, especially if the air temperatures are cold, I would recommend doubling up layers and either wearing a second set of these or getting a heavier layer to wear over them.

    Overall, this was a great buy and a much cheaper option than other base layers. I would definitely purchase this one again!

    -Piper's boyfriend :-)
    24 people found this helpful
    Report
  • Reviewed in the United States on January 31, 2025
    Team Name: One PackAthlete: Light Weight (165 GSM)Size: LargeColor: Melange GreyVerified Purchase
    Soft and comfortable warm and cozy. Fit like a glove.
  • Reviewed in the United States on January 19, 2025
    Team Name: One PackAthlete: Standard Weight (185 GSM)Size: MediumColor: Christmas DesignVerified Purchase
    When I noticed that there was no pee port on this pair of thermal underwear, I was quite disappointed. But I wondered if perhaps it was made to be worn by women and had gotten thrown in with the men's wear by mistake. Or maybe it was a manufacturer's oversight. At any rate, when I told my wife about the problem and said I was going to return the underwear, she said, "Wait a minute, let me try it on." She did, and she loved the color and the warmth. Even though the top part is too small, the upper part is just right. So we are going to keep the bottom part and give away the upper part. So all is well here. I would think you would like to know about this so that other online customers will not be mislead.
  • Reviewed in the United States on May 2, 2025
    Team Name: One PackAthlete: Standard Weight (185 GSM)Size: LargeColor: BlackVerified Purchase
    Kept warm without being sweaty
  • Reviewed in the United States on December 22, 2024
    Team Name: One PackAthlete: Heavy Weight (250 GSM)Size: XX-LargeColor: WhiteVerified Purchase
    It is extremely comfortable and keeps you warm. It doesn't show through your clothes so nobody knows you're wearing them. Quality-made and soft on your skin. Great value for the price and would recommend them to anyone needing them for the cold winter months. You may want to get 2 pairs to always have on hand.
  • Reviewed in the United States on February 5, 2025
    Team Name: One PackAthlete: Light Weight (165 GSM)Size: XX-LargeColor: NavyVerified Purchase
    I was skeptical about the thin material, but have found that these thermal underwear are as warm as the quilted cotton ones.
    They fit more snugly than the others, but this has not been a problem. I have a large, barrel chest and matching stomach, but the XXL’s fit well.
    I’d buy them again.
    2 people found this helpful
    Report
  • Reviewed in the United States on January 28, 2025
    Team Name: Two PackAthlete: Standard Weight (185 GSM)Size: LargeColor: BlackVerified Purchase
    The product seems fine, haven't used it yet. The problem is that I ordered the two pack for 50 dollars and the as stated that there were 2 complete sets and I only got one complete set, thinking of returning that set
  • Reviewed in the United States on April 25, 2025
    Team Name: One PackAthlete: Standard Weight (185 GSM)Size: X-LargeColor: WhiteVerified Purchase
    Warm and comfortable

Top reviews from other countries

Translate all reviews to English
  • سليمان عبدالرحمن النملة
    2.0 out of 5 stars الوزن وقوة التدفئة
    Reviewed in Saudi Arabia on February 2, 2025
    Team Name: One PackAthlete: Standard Weight (185 GSM)Size: X-LargeColor: Heather GreyVerified Purchase
    غير مناسب لي خفيف وليس مدافي
    Report
  • AJMAL
    4.0 out of 5 stars Good stuff
    Reviewed in the United Arab Emirates on September 29, 2020
    Team Name: One PackAthlete: Standard Weight (185 GSM)Size: X-LargeColor: NavyVerified Purchase
    Good stuff
    Bought one size up
  • Khaled
    2.0 out of 5 stars القماش خفيف واللون ليس كما في الصورة.
    Reviewed in Saudi Arabia on October 26, 2024
    Team Name: One PackAthlete: Heavy Weight (250 GSM)Size: MediumColor: WhiteVerified Purchase
    اللون (بيج) وليس كما في الصورة، والقماش خفيف.
  • OzCableguy
    5.0 out of 5 stars Well priced, nice fit, warm
    Reviewed in Australia on July 27, 2020
    Nice and warm, but not stupidly warm. Great for cycling in the Queensland subtropical winter where it's not quite cold enough for a full coat but too cold for just a T shirt.
  • Abo Thamer
    3.0 out of 5 stars The color was not white!
    Reviewed in Saudi Arabia on December 12, 2024
    Team Name: One PackAthlete: Standard Weight (185 GSM)Size: SmallColor: WhiteVerified Purchase
    As stated,The color was not white, it was like cream or light yellow, this is not acceptable specially from highly rated merchant! All my clothes are white and I can't wear cream or light yellow underwear, I sent it back and waiting for my refund !