Top 10 Thermal Underwear for Men Wool – Men’s Thermal Underwear Bottoms

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1. Carhartt

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Black Heather, Large Tall, Carhartt Men's Size Force Heavyweight Thermal Base Layer Pant

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Carhartt #ad - Rugged flex technology for ease of movement. Smooth flat lock seams and tagless label enhance comfort. Strategic seam placement for maximum comfort and reduced chafing. Poly-wool blend regulates temperature, fast dry wicks away sweat and fights odor. Concealed dry low-stitch waistband and contoured front for comfort.
BrandCarhartt #ad
ManufacturerCarhartt #ad
Part NumberMBL121T-027-L
ModelMBL121T-BLKHTR-L

2. Rocky

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

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Rocky #ad - 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. 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’.

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.

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. 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.
BrandRocky #ad
Part NumberLYSB01MXZTXSG-SPRTSEQIP

3. LAPASA

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Winter Ski and Hunting Gear, 100% Merino Wool Shirt and Pants, Lightweight, Black, X-Large, Mens Thermal Underwear Top and Bottom, M31, LAPASA Merino Wool Base Layer for Men

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LAPASA #ad - As a lightweight thickness thermal, this can easily be worn as a base layer that will wick away moisture while keeping you cosy. Whether you're camping, conform, working, snowboarding, hiking, this comfy thermal has got you covered. Comfortably warmone of the benefits of merino wool is that the material provides effective insulation while maintaining breathability to keep you at the optimal temperature.

Lightthe excellent warmth to weight ratio of this thermal make for an ideal choice while traveling and packing when you want some lightweight long johns during your adventures. Stays freshwhatever the season, this light thermal will be a solid choice in your wardrobe as the Merino wool has naturally hygienic properties to keep you fresh through the day regardless of the weather. The standard 100 by oeko-tex rating ensures product safety and that this textile has been tested for harmful substances.

200g/m² lightweight100% merino wool lapasa uses a 200g/m² interlock knit merino wool to ensure that this thermal will be your choice in cool weather. It goes where you gothe durable 4-way stretch rib knit hem and snug fit will flex, working out, or just taking it easy, and move with your body to maintain range of motion and comfort. These thermal underwear are made with 18. 5 micron merino wool fibers giving them a soft and smooth feel without the itch associated with traditional wool clothes. You can comfortably wear these all day from sunup, to past sundown for whatever comes you way.
BrandLAPASA #ad
Height11.81 Inches
Length8.27 Inches
Width1.57 Inches
ModelLPM17AW00310BLK0XLR2

4. MERIWOOL

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MERIWOOL Mens Base Layer, 100% Merino Wool Midweight Long Sleeve Thermal Shirt Charcoal Gray

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MERIWOOL #ad - Easy care: mid-weight long sleeve crew top shirt is machine-washable on cold setting and safe to tumble dry on low heat, so it’s ready when you are for your next adventure. Men’s size options: XS to 3XL. Wicking refers to a fabric’s ability to pull moisture away from your body and keep you comfortable.

Super soft: 100% all natural superfine 18. 5-micron merino wool ensures comfort all day – no itch! eaSY CARE: Mid-weight long sleeve crew top shirt is machine-washable and dryer-safe, so it’s ready when you are for your next adventure. Washer/dryer safe. For best results: hand wash and lay flat to dry. Wicking & odor resistance: merino wool’s natural wicking and odor-resistant properties keep you dry and comfortable while active in cold weather. Breathable: keeping you cool in summer and warm in winter, 250g/m2 weight interlock-knit merino wool can be used as a base layer or mid-layer, but won’t weigh you down.

Exceptional customer care: if your meriwool men’s crew top doesn’t perform to your satisfaction, return it to us within 30 DAYS along with proof of purchase for a hassle-free refund, exchange, or replacement. Includes a 1-year limited manufacturer’s warranty,  which covers manufacturing and material defects. Package includes: 1 - men’s 250g/m² merino wool thermal crewneck top. Through the process of wicking, Merino wool is the most breathable fabric and absorbs moisture better than any other fibers.
BrandMERIWOOL #ad
ManufacturerMERIWOOL #ad
Weight0.71 Pounds
Part NumberLYSB01N985IZ3-SPRTSEQIP

5. MERIWOOL

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MERIWOOL Mens Base Layer 100% Merino Wool Thermal Pants Black

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MERIWOOL #ad - Comfortable & convenient: Quick-drying pants feature a loop for hang drying while camping, hunting, or partaking in any outdoors activity. Exceptional customer care: if your meriwool men’s leggings don’t perform to your satisfaction, exchange, or replacement. Package includes: 1 - men’s 250g/m² merino wool thermal leggings.

Through the process of wicking, Merino wool is the most breathable fabric and absorbs moisture better than any other fibers. Breathable: keeping you cool in summer and warm in winter, meriwool’s 250g/m2 weight interlock-knit Merino wool can be used as a base layer or mid-layer, working, skiing, playing sports, hiking, but won’t weigh you down. Men’s size options: XS to 3XL. Super soft: 100% all natural superfine 18. 5-micron merino wool ensures comfort all day long – no itch! easy CARE: Your thermal pants are machine-washable on cold setting and safe to tumble dry on low heat with like colors, so it’s ready when you are for your next adventure.

For best results: hand wash and lay flat to dry. Includes a 1-year limited manufacturer’s warranty, return it to us within 30 DAYS with proof of purchase for a hassle-free refund, which covers manufacturing and material defects. Wicking & odor resistance: merino wool’s natural wicking and odor-resistant properties keep you dry and comfortable while active in cold weather. Wicking refers to a fabric’s ability to pull moisture away from your body and keep you comfortable.
BrandMERIWOOL #ad
ManufacturerMERIWOOL #ad
Height50 Centimeters
Length100 Centimeters
Weight100 Kilograms
Width100 Centimeters
Part NumberEM MW-M-LEG250-XL-BLK

6. Merino.tech

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Black 250, Merino.tech Merino Wool Base Layer Mens Bottom Pants 100% Merino Wool Midweight Thermal Underwear Long Johns + Wool Socks X-Large

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Merino.tech #ad - 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. Midweight merino wool Base Layer Mens naturally regulates body temperature to keep you comfortable all year round. For longer lasting wear, hand wash and air dry.

Free merino wool hiking socks $21 value! – package includes merino wool pants for men midweight 250 g/m² + merino Wool Hiking Socks. Easy care – washer/dryer safe. Lifetime warranty – all merino. Tech products are covered by our lifetime warranty. If your merino pants do not perform to your satisfaction, return them within 60 DAYS for a hassle-free refund, exchange, or replacement.
BrandMerino.tech #ad

7. Duofold

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Small, Olive Heather, Duofold Men's Mid Weight Double Layer Thermal Pant

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Duofold #ad - Two-layer thermal for warmth in cold weather. Tagless labels for more comfort. Flatlock seams to avoid irritation.
BrandDuofold #ad
ManufacturerHanesbrands - Duofold #ad
Height1 Inches
Length13 Inches
Weight0.41 Pounds
Width8 Inches
Part NumberKMO3-Olive Heather-Small
ModelKMO3

8. Indera

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HeatherGrey, Large, Indera Men's Two-Layer Performance Thermal Underwear Pant with Silvadur

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Indera #ad - Available in sizes up to 3X and 3X Tall. Speeds moisture evaporation. Rated for very cold to extremely cold weather and medium to high activity. Odor control. 7. 0 oz, 2-layer fabric featuring merino wool outside for warmth, and SilvadurTM inside for odor control. Wicks moisture - 30% merino wool outside/100% Silvadur Technology inside. Rib cuffs for added protection from cold, tagless label. 2-layer polyester and merino wool blend fabric traps and retains body heat and inherently wicks moisture.
BrandIndera #ad
ManufacturerColdPruf Baselayer #ad
Height0.94 Inches
Length11 Inches
Width8 Inches
Part Number975DR-2L
Model975DR-2L

9. MERIWOOL

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MERIWOOL Mens Base Layer 100% Merino Wool Heavyweight 400g Thermal Pants Black

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MERIWOOL #ad - Wicking & odor resistance: merino wool’s natural wicking and odor-resistant properties keep you dry and comfortable while active in cold weather. Through the process of wicking, Merino wool is the most breathable fabric and absorbs moisture better than any other fibers. 400g of warmth: upgrade from our most popular 250g midweight bottoms to our new 400g heavyweight bottoms! these interlock-knit merino wool thermal legging are perfect as base layer or mid layer for cold to freezing conditions; our warmest and thickest base layer yet! COMFORTABLE & CONVENIENT: Quick-drying pants with a UPF Rating 50+, working, hiking, they feature a loop for hang drying while camping, playing sports, skiing, hunting, or partaking in any outdoors activity.

Exceptional customer care: if your meriwool men’s heavyweight baselayer bottoms don’t perform to your satisfaction, return it to us within 30 DAYS with proof of purchase for a hassle-free refund, or replacement.

Men’s size options: S to 2XL. Includes a 1-year limited manufacturer’s warranty, exchange, which covers manufacturing and material defects. For best results: hand wash and lay flat to dry. Super soft: 100% all natural superfine 18. 5-micron merino wool ensures comfort all day long – no itch! easy CARE: Your thermal pants are machine-washable on cold setting and safe to tumble dry on low heat with like colors, so it’s ready when you are for your next adventure. Wicking refers to a fabric’s ability to pull moisture away from your body and keep you comfortable.
BrandMERIWOOL #ad
ManufacturerMERIWOOL #ad

10. ColdPruf

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ColdPruf Men's Authentic Dual Layer Wool Plus Base Layer Bottom, Medium, Oatmeal

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ColdPruf #ad - True sizing For Accurate Fit. Two-layer engineering with Merino Wool, traps body heat between layers, resulting in chill-blocking warmth. Tagless labeling, non-itch waistband and gussets for added durability and comfortable fit.

Ring spun yarns Provides Exceptional Softness. Best for dressing with minimal layers in extreme cold and low to medium activity levels. Front and back rise provides an exceptionally comfortable fit and maintains coverage during various activities. Flat seams, tagless and Front and Back Rise for Comfort. Thermachoice system: extreme cold weather/low to MEDIUM ACTIVITY. Perfect as a base layer or on its own. Gussets and Comfort Waistband. Convenient functioning front fly. Pant sits at natural waistline.
BrandColdPruf #ad
ManufacturerColdPruf Baselayer #ad
Height0 Inches
Length0 Inches
Weight0.65 Pounds
Width0 Inches
Part Number92BMDOM
Model92BMDOM