As an Amazon Associate I earn from qualifying purchases.

Reliable heat retention: made of cozy waffle-knit fabric, our long johns for men trap and retain body heat within the waffle pockets. Soft cotton construction: Our men’s long underwear features an ultra-comfortable 100% cotton construction.

Soft cotton-poly construction: our men’s long underwear is constructed of a comfortable cotton blend enhanced with polyester for added stability and utility. Combats cold conditions: our men’s long johns help you weather cold to very cold conditions during medium-level activities like hiking, camping, and even lounging.

High-performance fabric: men thermal underwear pants are crafted with the right blend of 92% ultra-soft polyester and 8% spandex. Men thermal pants offer the warmth of multiple layers without the bulk of one.
The elastic band lies flat against the clothing, so the thermal pants look invisible under your ski pants or jeans. Ultra stretchable: thanks to the four-way stretch design and poly-spandex composition of mens thermal compression pants, you can move freely no matter which direction you decide to go. Polyester offers durability while spandex allows stretchability. Smart odor controllers restrict the spread of smell and neutralize the odor generated because of sweat.

Thermal underwear set gives you flexibility by hugging your body to move, you’ll feel a sense of freedom in all your activities, they will keep you warm without sacrificing your range of motion or comfort, whether shopping or leisure. All-day comfortable wearing experience: size guide: please order 1 size larger than you normally wear.
You can relax or brave the outdoors pursuing your active lifestyle at any time. Flexibility for any movement: the 4-way stretch delivers full mobility and a squat proof design, its strong seams won’t tear prematurely. Strong moisture wicking: mens thermals top and bottom set is made of moisture wicking and breathable fabric, wick away sweat fast to keep you dry and light, with wool thermal underwear men moisture transport system, easily keep away from the clammy feeling. Perfect design for man:mens long johns winter base layer perfect for use underneath formal or casual attire, run, or they can be worn as comfy pajamas on chilly nights.


No more old-school scratchy insulated underwear: traditional cotton long underwear are simply scratchy and uncomfortable to wear for long periods of time, Rocky thermals are made from a soft, comfy polyester blend so you can enjoy all-day comfort, and your winter adventures never have to end.
Fleece-lined comfort without the bulk: don’t let the lightweight fabric fool you, thanks to the fleece-lined design, this thermal underwear set gives you high-quality warmth that fans say keep them warmer than traditional puffy thermals or wool base layers that leave you feeling strangled or trapped. Keep warm without the sweaty mess: happy customers say the unique breathable, moisture-wicking fibers on Rocky thermal underwear keeps them warm, without becoming sweat-soaked, so trips to the snow aren’t ruined by constant uncomfortable sweating and overheating.

Lifetime warranty – all merino. Tech products are covered by our lifetime warranty. Moisture wicking & odor resistant – merino baselayer men natural wicking and odor-resistant properties allow it to absorb moisture better than any other fabric, keeping you dry and fresh.
Cool packaging! makes a great christmas gift! super soft & comfortable – 100% superfine 18. 5 micron merino wool underwear Mens provide all day comfort and no itch! Designed for daily wear without rubbing and overheating of regular cotton. If your merino pants do not perform to your satisfaction, exchange, return them within 60 DAYS for a hassle-free refund, or replacement.

Multi-wick technology keeps you warm and dry. Advanced thermoregulation technology works to keep you comfortable in a variety of environments.

1. Fruit of the Loom
#ad
Large, Black, Fruit of the Loom Men's Recycled Premium Waffle Thermal Underwear Long Johns Bottom 1, 2, 3, and 4 Packs
#adFruit of the Loom #ad - Provides insulation and warmth in cold to moderately cold conditions. Reinforced flat seam construction. Traditional full length thermal pant made from U. S. Sourced cotton and recycled polyester. Moisture wicking and quick drying fabric. Soft mini waffle fabric long johns underwear bottoms.More information #ad
Brand | Fruit of the Loom #ad |
Manufacturer | Fruit of the Loom #ad |
Part Number | WRT20932 |
Model | WRT20932 |
More information #ad
2. Indera
#ad
Indera Heavyweight Cotton Waffle Long Johns Thermal Underwear For Men
#adIndera #ad - Combats cold: our men’s long johns help you weather very cold to extremely cold conditions during medium-exertion activities like hiking, camping, and even lounging.Reliable heat retention: made of cozy waffle-knit fabric, our long johns for men trap and retain body heat within the waffle pockets. Soft cotton construction: Our men’s long underwear features an ultra-comfortable 100% cotton construction.
More information #ad
Versatile sizing: our thermal leggings are available in Tall and sizes up to 3X. Comfort-driven design: the ultimate long underwear, our men's thermal underwear features ribbed cuffs that help keep the cold out; A front fly enhances functionality.Brand | Indera #ad |
Manufacturer | ColdPruf Baselayer #ad |
Height | 0.5 Inches |
Length | 11 Inches |
Weight | 0.25 Pounds |
Width | 8 Inches |
Part Number | 839DR |
Model | 839DRXLGR |
More information #ad
3. Indera
#ad
Indera Traditional Long Johns Thermal Underwear for Men
#adIndera #ad - Comfort-driven design: the ultimate long underwear, our men's thermal underwear features ribbed cuffs that help keep the cold out; A front fly enhances functionality.Soft cotton-poly construction: our men’s long underwear is constructed of a comfortable cotton blend enhanced with polyester for added stability and utility. Combats cold conditions: our men’s long johns help you weather cold to very cold conditions during medium-level activities like hiking, camping, and even lounging.
More information #ad
Reliable heat retention: made of cozy waffle-knit fabric, our long johns for men trap and retain body heat within the waffle pockets. Versatile sizing: Our thermal leggings are available in sizes up to 6X.Brand | Indera #ad |
Manufacturer | ColdPruf Baselayer #ad |
Height | 7 Inches |
Length | 7 Inches |
Weight | 0.25 Pounds |
Width | 7 Inches |
Part Number | 800DR |
Model | 800DR |
More information #ad
4. Thermajohn
#ad
Thermajohn Mens Thermal Underwear Pants Long Johns Bottoms for Men Black, Large
#adThermajohn #ad - Mens thermal pant stretches with your natural movement without restricting your mobility. Moisture & odor resistant: the cross section fibers and breathable fabric of mens thermal bottoms wicks away the moisture and releases it on the outside to avoid any sticky feeling. The tightly knitted seams and ultra-fine polyester fibers retain body heat as well as minimize the loss of heat generated by our thermal pants.High-performance fabric: men thermal underwear pants are crafted with the right blend of 92% ultra-soft polyester and 8% spandex. Men thermal pants offer the warmth of multiple layers without the bulk of one.
More information #ad
Robust binding finish around the seams makes sure there is no premature ripping or tearing. Keeps you warm: mens thermal base layer pants by thermajohn are all you need to bear the winter winds. Flat elastic waistband: our practical layering clothing feels almost like a second skin. The elastic band lies flat against the clothing, so the thermal pants look invisible under your ski pants or jeans. Ultra stretchable: thanks to the four-way stretch design and poly-spandex composition of mens thermal compression pants, you can move freely no matter which direction you decide to go. Polyester offers durability while spandex allows stretchability. Smart odor controllers restrict the spread of smell and neutralize the odor generated because of sweat.
Brand | Thermajohn #ad |
Height | 0.59 Inches |
Length | 12.52 Inches |
Width | 9.45 Inches |
More information #ad
5. WEERTI
#ad
WEERTI Thermal Underwear for Men, Long Johns Base Layer Fleece Lined Top Bottom Charcoal M
#adWEERTI #ad - Mens long johns thermal set made of 92% Soft Polyester / 8% Spandex blend super skin-touch fabric with fleece lined. Long johns for men fit snug like a second skin for minimizing heat loss, lightweight but warm, thermal underwear set gives you a sense of security throughout the winter. When going out to jogger, bike, dress up this set under your clothing to keep warm and cozy in cold climates or bad weather.Thermal underwear set gives you flexibility by hugging your body to move, you’ll feel a sense of freedom in all your activities, they will keep you warm without sacrificing your range of motion or comfort, whether shopping or leisure. All-day comfortable wearing experience: size guide: please order 1 size larger than you normally wear.
More information #ad
If you don't love your thermal underwear set for any reason, let us know and we'll refund your money back or send you a replacement! That is how confident we are that you will love it!100% satisfaction guarantee: we promise these are the most comfortable long johns for men thermal sets you will ever own. You can relax or brave the outdoors pursuing your active lifestyle at any time. Flexibility for any movement: the 4-way stretch delivers full mobility and a squat proof design, its strong seams won’t tear prematurely. Strong moisture wicking: mens thermals top and bottom set is made of moisture wicking and breathable fabric, wick away sweat fast to keep you dry and light, with wool thermal underwear men moisture transport system, easily keep away from the clammy feeling. Perfect design for man:mens long johns winter base layer perfect for use underneath formal or casual attire, run, or they can be worn as comfy pajamas on chilly nights.
Brand | WEERTI #ad |
Height | 0.5 Inches |
Length | 7 Inches |
Width | 9 Inches |
More information #ad
6. TSLA
#ad
Thermal Fly-Front 2pack Black, TSLA Men's Thermal Underwear Pants, Heated Warm Fleece Lined Long Johns Leggings, Medium, Winter Base Layer Bottoms
#adTSLA #ad - Materials mix of polyester & Elastine fabric is excellent mobility and moisture-wicking. It is suitable as sleepwear at home or a baselayer when an extra layer is needed. Alert: true to size : please follow the size examples below*eX: Size "Large recommended" - Size for 6" 215 lbs.More information #ad
Washing tip : Wash separately before wearing. Heatfit design cherry-picked thermal fleece pants designed for warmth and ultra-soft touch. Ex: size "medium" 5'9"165 lbs. 2 bottom set It contains two thermal underwear pants. Tsla thermal underwear Pants Series designed for warmth and soft touch.Brand | TSLA #ad |
Manufacturer | Tesla Gears #ad |
Part Number | MHB101 |
More information #ad
7. Rocky
#ad
Base Layer w/Leggings/Bottoms Ski/Extreme Cold Black, Midweight Fleece/X-Large, Rocky Thermal Underwear for Men Thermal Long Johns Set Shirt & Pants
#adRocky #ad - No more awkward adjusting thanks to elastic seams: check out the pictures and see how this men’s thermal underwear set is crafted using elastic seems that keep tops and bottoms from falling down or bunching up even on long walks to school, snowboarding, and if your family enjoys skiing, or ice skating then Rocky makes a great base layer -- but without the sagging and ‘awkward adjustments’.No more old-school scratchy insulated underwear: traditional cotton long underwear are simply scratchy and uncomfortable to wear for long periods of time, Rocky thermals are made from a soft, comfy polyester blend so you can enjoy all-day comfort, and your winter adventures never have to end.
More information #ad
Machine washable for easy cleanup: while cheap thermal underwear unravel in the washing machine after only a few cycles, Rocky uses high-quality stitching for thermal leggings and long sleeve shirts that stand up to the washer -- even with super-active days and many muddy adventures. Fleece-lined comfort without the bulk: don’t let the lightweight fabric fool you, thanks to the fleece-lined design, this thermal underwear set gives you high-quality warmth that fans say keep them warmer than traditional puffy thermals or wool base layers that leave you feeling strangled or trapped. Keep warm without the sweaty mess: happy customers say the unique breathable, moisture-wicking fibers on Rocky thermal underwear keeps them warm, without becoming sweat-soaked, so trips to the snow aren’t ruined by constant uncomfortable sweating and overheating.
Brand | Rocky #ad |
Height | 0.7 Inches |
Length | 5 Inches |
Width | 5 Inches |
More information #ad
8. Merino.tech
#ad
Black 250, Merino.tech Merino Wool Base Layer Mens Bottom Pants 100% Merino Wool Midweight Thermal Underwear Long Johns + Wool Socks X-Large
#adMerino.tech #ad - Easy care – washer/dryer safe. Free merino wool hiking socks $21 value! – package includes merino wool pants for men midweight 250 g/m² + merino Wool Hiking Socks. Midweight merino wool Base Layer Mens naturally regulates body temperature to keep you comfortable all year round.Lifetime warranty – all merino. Tech products are covered by our lifetime warranty. Moisture wicking & odor resistant – merino baselayer men natural wicking and odor-resistant properties allow it to absorb moisture better than any other fabric, keeping you dry and fresh.
More information #ad
For longer lasting wear, hand wash and air dry. Cool packaging! makes a great christmas gift! super soft & comfortable – 100% superfine 18. 5 micron merino wool underwear Mens provide all day comfort and no itch! Designed for daily wear without rubbing and overheating of regular cotton. If your merino pants do not perform to your satisfaction, exchange, return them within 60 DAYS for a hassle-free refund, or replacement.
Brand | Merino.tech #ad |
More information #ad
9. Place and Street
#ad
Place and Street Men’s Cotton Thermal Underwear Set Shirt Pants Long Johns White
#adPlace and Street #ad - Breathable waffle-knit thermal construction keeps you odor free. Functional fly. 60% cotton, 40% ultra-Soft Polyester. The cotton-blend fabrics help you endure the harshest environments.Multi-wick technology keeps you warm and dry. Advanced thermoregulation technology works to keep you comfortable in a variety of environments.
More information #ad
2 pieces: 1 men's thermal shirt, 1 men's thermal pant. Featuring premium retentionx waffle-knit fabric, these men's thermals feature a blend of cotton and stretch yarns. These heavyweight cotton men's thermal sets are engineered with advanced performance and endurance in mind.Brand | Place and Street #ad |
More information #ad
10. Carhartt
#ad
Carhartt Men's Force Midweight Classic Thermal Base Layer Pant, Large, Black
#adCarhartt #ad - Waffle knit traps heat, fast dry wicks away sweat and fights odor. Rugged flex technology for ease of movement. Concealed dry low-stitch waistband and contoured front for comfort.More information #ad
Smooth flatlock seams and tagless label enhance comfort. Strategic seam placement for maximum comfort and reduced chafing.Brand | Carhartt #ad |
Manufacturer | Carhartt #ad |
Height | 0.7 Inches |
Length | 5 Inches |
Weight | 0.45 Pounds |
Width | 5 Inches |
Part Number | MBL115-001-L |
Model | MBL115-BLK-L |
More information #ad