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romision Mens Thermal Underwear Set Long Johns Fleece Lined Base Layer

  • Based on 3,482 reviews
Condition: New
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Availability: Only 5 left in stock, order soon!
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Arrives Friday, Oct 30
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Size: X-Small


Color: C-black&army Green


Description

Defeat the Freeze with Romision Winter Thermals Gear up with the ultimate extreme cold weather gear. Our fleece-lined long johns provide exceptional heat retention without the bulk, making them the perfect undergarments for layering under workwear or snowsuits. Quick Buying Guide (Choose Your Fit): Weight: Midweight (for daily wear, gym & active sports) vs. Heavyweight (for sub-zero temps, hunting clothes & outdoor work). Style: Crew Neck or Turtleneck tops. Open-Fly (for bathroom convenience) or No-Fly bottoms (for a seamless pajama fit). Para Nuestros Clientes (Perfecto para el invierno): Nuestra ropa interior termica para hombres está diseñada para combatir el frío extremo. Ya sea que necesites ropa para el frio para trabajar al aire libre, o un conjunto termico para esquiar, estos calzoncillos largos para hombre y camisetas termicas para hombre te mantendrán caliente todo el día. Es la ropa de invierno perfecta para ti o como regalo. Stay warm, stay active!

Department ‏ : ‎ mens


Date First Available ‏ : ‎ August 18, 2026


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


Best Sellers Rank: #11,064 in Clothing, Shoes & Jewelry (See Top 100 in Clothing, Shoes & Jewelry) #17 in Men's Thermal Underwear


#17 in Men's Thermal Underwear:


Customer Reviews: 4.6 4.6 out of 5 stars (3,482)


Color: C-black&army Green


Style Name: Thermal


Rise Style: Mid Rise


Leg Style: Straight


Fit Type: Regular


Apparel Occasion and Lifestyle: Casual


Pattern Style: Solid


Pants Form Type: Leggings


Sport Type: Running


Apparel Closure Type: Pull On


Front Pleat Type: Flat Front


Apparel Closure Orientation: Front


Pattern: Solid


Collection Name: Winter


Brand Name: romision


Age Range Description: Adult


Model Name: 17-multi-pack Sets


Style Number: thermal underwear


Team Name: Midweight-Crew Neck-No Fly


Import Designation: Imported


Garment Size Country: United States


Fit to Size Sentiment: Neutral


Material Type: Polyester


Fabric Type: 90% Polyester & 10% Spandex(Soft and Warm Fabrics)


Product Care Instructions: Machine Wash


Fabric Stretchability: Stretchable


Apparel Fabric Weight Class: Medium Weight


Apparel Fabric Stretch: High Stretch


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Oct 30

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


  • Nice Quality and Fit
Size: Large Color: H-black&black
Very very warm. Soft and comfortable lining. Kept the wind and snow at bay. You better be below freezing before you put them on. In the 50s you will absolutely roast.
Reviewed in the United States on July 7, 2026 by VDubLyfe

  • Very comfortable
Size: X-Large Color: C-black&black
Bought these for my husband, he works outside. He said they were the best thermals he’s ever had. They’re super comfortable and doesn’t make it feel like he has too many layers. They don’t make his clothes feel too bulky.
Reviewed in the United States on July 24, 2026 by Leah Williams

  • Good but.
Size: Large Color: C-black&army Green
These saved my butt in Iceland. They were comfortable and kept me warm. 10 out of 10. The wife thinks they look hot on me too. So maybe 11 out of 10.
Reviewed in the United States on July 16, 2026 by daniel laporta

  • Warm and 9/10 fit
Size: Large Color: C-black&black
I say 4.5. I wear large shirts and medium shorts. I have a 30" inseam. I bought large, and the tops of these fit great, a great balance of comfort and skin-hugging fit. The bottoms are tall in the crotch, which is great because I hate the pants that have too small of a but bucket. The are loose around the legs, especially the lower legs, which makes getting socks on more difficult (I tuck the long underwear into my socks). That is the fit opinion. The warmth opinion is 5 stars. they are a great fabric, not catching dry skin, and keep me warm. ... show more
Reviewed in the United States on October 27, 2025 by T. Church

  • Comfortable
Size: Large Color: C-black&army Green
Soft, comfortable, great fit I’m tall the pants are a perfect length and the shirt has the longer sleeves that is a plus
Reviewed in the United States on September 20, 2026 by Robert Escobar

  • Great base layers
Size: XX-Large Color: C-black&army Green
Very comfortable and warm
Reviewed in the United States on August 18, 2026 by Angela Litchko

  • Fit and function as described!!
Size: X-Large Color: C-black&army Green
As other reviews mention, they go the extra step with packaging. Nice outer box and each set is packaged in a zip lock style bag. My husband's comments below... The feel and fit is perfect. They are fitted, so I was happy I went a size larger than I needed. I lost the slim and trim figure after 50...Ha! The sleeves extend over the wrist, allowing more retention of body heat. Also, the neck is somewhat loose but fitted at the same time. I dislike shirts that ride too high, too low or tight around the neck. Waistband elastic fits the same, not too tight or loose. With the first test fit you can tell they help retain body heat, and have the moisture wicking feel of higher end brands. I see these becoming a frequent choice to wear this winter. Would definitely purchase again! ... show more
Reviewed in the United States on October 28, 2025 by Lisa

  • EXCELLENT, though don't keep me as warm as hoped for.
Size: Large Color: T-black&army Green
GET THE LARGE - I'm 5' 9", 155lbs, slim build... and got the Medium and Large. The Large fits much better. The Medium is fine, but a little too tight. I kept the Medium just because! If you're my size and you like a tight fit, get the Medium, but if you like an easier fit, more comfortable, get the large. Overall, these are very comfortable, but not as warm as I hoped for. They work great, but like I said, I was hoping for warmer. I don't really know what to expect in thermal underwear, because these are the first I have every owned, so I kept them, because they are comfortable and do keep me pretty warm. AND, you could, but I won't be wearing these by themselves, just too revealing!:) I'm WAY TOO modest!:) JOHNAVATAR.com ... show more
Reviewed in the United States on February 15, 2024 by JOHN AVATAR

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