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Mens Thermal Underwear Long Johns Set Cold Weather Hunting Base Layer

  • Based on 11,765 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Wednesday, Sep 2
Order within 23 hours and 11 minutes
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Size: Large


Color: 2#black


Description

Your Ultimate Shield Against the Cold Step into winter with confidence. The [Brand] Men's Thermal Base Layer Set is engineered to deliver maximum warmth and breathability. Featuring a premium, ultra-soft fleece interior, this cold- weather staple locks in body heat while remaining incredibly lightweight, ensuring you stay comfortable whether you are braving the snowy outdoors or relaxing indoors. Customize Your Winter Gear (Buying Guide): We offer multiple variations to perfectly match your lifestyle and local weather conditions: Thickness Levels: Opt for Midweight for everyday commuting, fall weather, and active workouts. Choose Heavyweight for extreme freezing conditions, winter hunting, and heavy-duty outdoor labor. Top & Bottom Designs: Select a classic Crew Neck or a draft-blocking Turtleneck. For the pants, choose the Open-Fly for quick bathroom access, or the No-Fly front for a sleek, snug fit that doubles as cozy sleepwear. Atención a Nuestros Clientes (Tu mejor aliado contra el frío): Prepárate para las bajas temperaturas con nuestra ropa interior termica para hombres. Si buscas ropa para el frio resistente para el trabajo duro o un conjunto termico cómodo para estar en casa, tenemos lo que necesitas. Combinando camisetas termicas para hombre y calzoncillos largos para hombre, este set retiene el calor corporal sin hacerte sudar. Es la ropa de invierno perfecta para protegerte del clima extremo o para dar como un gran regalo.

Department ‏ : ‎ mens


Date First Available ‏ : ‎ July 24, 2026


Product Warranty: For warranty information about this product, please click here


Best Sellers Rank: #22,011 in Clothing, Shoes & Jewelry (See Top 100 in Clothing, Shoes & Jewelry) #3 in Men's Thermal Underwear Bottoms


#3 in Men's Thermal Underwear Bottoms:


Customer Reviews: 4.6 4.6 out of 5 stars (11,765)


Fit Type: Stretch


Sleeve Type: Long Sleeve


Neck Style: Crew Neck


Fit to Size Sentiment: Positive


Sleeve Length Description: Long Sleeve


Apparel Closure Type: Pull On


Brand Name: CL convallaria


Number of Items: 2


Age Range Description: Adult


Item Type Name: Base Layers


Style Number: thermal underwear


Manufacturer Part Number: YX-18-BK-TN-NF-L


Import Designation: Imported


Material Type: Polyester


Fabric Type: Midweight(220g/m², 90% Polyester, 10% Spandex)


Apparel Fabric Weight Class: Medium Weight


Apparel Fabric Stretch: High Stretch


Product Care Instructions: Machine Wash(2#-Midweight-TurtleNeck-NoFly)


Color: 2#black


Pattern: Solid


Collection Name: Winter


Life Event: Birthday


Occasion Type: Camping, Home, Hunting, Running, Skiing


Style Name: Mens Thermal Underwear


Size: Large


Garment Size Country: United States


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Sep 2

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.

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Top Amazon Reviews


  • Good fit for Big & Tall guys
Size: XX-Large Color: 1#black
Any Big & Tall guys reading this, these fit great. I'm 6'7 300 and got XXL and they fit beyond perfect. The listed size charts are not accurate related to inseam IMO. I usually wear a 42-34, sometimes a 32. 19.5/39 shirt. These have plenty of room, move well, feel warm and comfy and I can easy leave the cuff or pant cuff snugly around my wrist or ankle, or stretch them up over. This is so rare for me to have something that fits proper sleeve length, or all the way down my legs. Covers over my stomach with plenty of room to tuck in the lover pair or other layers. Plenty of trunk length. I can leave this mid calf and they feel snug and tight, or extend them down and they feel snug and tight. Same with the arms. GREAT to have have the fit as a tall guy. Had zero issues after cleaning. This is an excellent base layer, highly recommended. ... show more
Reviewed in the United States on January 24, 2026 by BigJ

  • Kept Our Hockey Player Warm in Single-Digit Temps!
Size: Small Color: 1#black
We bought this thermal underwear set in a size small for our freshman hockey player to wear during an outdoor game in Chicago, and it worked incredibly well. It kept him very warm in single-digit temperatures without adding bulk or limiting movement. The fabric is comfortable, fits well under gear, and held up through long hours outside in the cold. Perfect as a base layer for hockey, hunting, or any winter sport. Great quality and exactly what we needed for extreme cold. ... show more
Reviewed in the United States on January 20, 2026 by Karna Lamb

  • Good fit and warmth.
Size: Medium Color: 1#black
This worked perfectly for my son. He used the shirt for under his baseball uniform and it was snug enough without being uncomfortable or hindering his ability to play well. Yet keeping him warm during the cold games that happened. The pants fit well and we able to fit under his sweat pants when he needed them for an afternoon spent outdoors. The set washed well even after scrubbing and using stain remover. I ordered my son's usual size and it fit as expected. ... show more
Reviewed in the United States on July 21, 2026 by Angie Large

  • Great quality at an affordable price
Size: X-Large Color: 1#black
Bought these for my husband. I was worried they might be too tight or the shirt too short as he has a long torso and they do not have tells. But that wasn't the case. They fit him so perfectly. He is 6ft 220lbs and they are great! He said they conform to his body so good, not too tight but also not so loose that they become uncomfortable. They so do nit cause him to chaff, as he does not wear boxers with them. The only reason I gave them 4 out of 5 stars is bc they did not have any pockets on the pants like some do, not a deal breaker, pockets are just more convenient when running. We definitely recommend these thermals and this saler and we will definitely be buying more in the future! These we bought are not for heavy duty cold, they are a mid-cold warmth but do the job perfectly. Also great quality! ... show more
Reviewed in the United States on December 9, 2025 by L. Sharp

  • Fits perfectly, warm, cozy, soft
Size: Medium Color: 3#black
As I age, I need a little help keeping warm even in the milder winters of Maryland . These are just the perfect addition! These are very nice to wear as pajamas, too! And they wash up so very nicely! The fabric does not pile! True to fit.
Reviewed in the United States on March 2, 2026 by dave

  • Fit,worm,slim is . very good
Size: X-Large Color: 5#black
It is avery good product using it for years now Fit is excellent specially pants and that is hard to find Very warm and slim not thick My only concern i think it worn off after two winter I used tesla and under armor befor they last for many years but they didnt meat my excepctation in other things so i prefer convallaria am using it now and when my get worn i buy another.. they last may be two winter but i am using them alot Still my favorit product wont chang it ... show more
Reviewed in the United States on April 16, 2026 by Mohammed

  • Worth the purchase
Size: Large Color: 1#black
Thicker than I expected. I’m not sure why there were other customers complaining. The quality is great and adds an extra layer of warmth. Also sturdy yet stretchy fabric. Comfortable to wear. My only complaint(may be just me) but my skin gets irritated around the forearms. I’m 6’0 tall and 180 pounds. Ordered a large ... show more
Reviewed in the United States on February 14, 2026 by Tracy A.

  • Amazing!!!! Best winter wear!
Size: XX-Large Color: 5#green
Work outside? Stand outside? Fits under jeans no problem. Have amazing liner that feels good on the skin. These things will have you standing outside in nothing but these cause they’re so HOT! My buddy paid over $100 on under armor, then bought these soon after. Needless to say he returned the latter. I even ride my motorcycle in 30 degree weather, and these block all the wind 🖤 ... show more
Reviewed in the United States on January 31, 2026 by Morgan Masset

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