Rocky Base Layer Men Cold Weather Long Johns Thermal Underwear, White XL
Rocky Base Layer Men Cold Weather Long Johns Thermal Underwear, White XL
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Rocky

Rocky Base Layer Men Cold Weather Long Johns Thermal Underwear, White XL

|15 ratings
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Long Johns Thermal Underwear Black LargeRocky Base Layer Men Cold Weather Long Johns Thermal Underwear White Plaid Large
ColorWhite
Clothing SizeXL

Key item features

  • XL size fleece-lined thermal underwear bottoms for men in white
  • Mens long underwear that will keep you comfy and toasty during wintertime
  • Long johns that are comfortable to wear under your ski-wear or jeans
  • Machine washable thermals for men that won’t fray, rip, or sag even after repeated washings
  • Made of quality spandex based and polyester fabric with moisture-wicking fibers

Specs

Clothing size, XLFabric content, 90% PolyesterSleeve length style, Long SleeveColor, WhiteBrand, RockySeason, Winter

About this item

Product details

Create a thermal barrier against the cold with our thermal underwear.

When the temperature starts to drop, it’s important to bundle up with winter clothes. Designed to provide with optimal comfort and protection, our soft, fleece-lined men's thermal underwear keeps you comfy and warm without adding bulk to your cold-weather outfit.

No more worries about awkward bunching or binding. Our thermal underwear for men is made with a spandex-based fabric that stays put, making them the perfect choice for wearing bulky sweatpants, jeans, or ski-wear. You may even wear this long underwear as cozy sleepwear at home!

Complete your winter layering with these Rocky Base Layer Men Cold Weather Long Johns Thermal Underwear!

With Rocky’s signature moisture-wicking fibers, this thermal underwear for men ensures you won’t have to deal with embarrassing sweat stains. Plus, these thermal tights feature a smooth, itch-free fit so you can wear them comfortably all day long.

These long johns for men are easy to clean, too! Just toss them in the washing machine and let the machine do the rest. They are also made of durable material that can withstand regular washing without sagging, fraying or ripping.

We have the perfect fit for your active lifestyle! Our thermal leggings for men feature an elastic waistband that keeps it snugly in place without squeezing or pinching like cheap, poorly-fitted long johns.

Give yourself the gift of comfort on your wintry adventures. Add the Rocky Base Layer Men Cold Weather Long Johns Thermal Underwear to your cart today!

  • XL size fleece-lined thermal underwear bottoms for men in white
  • Mens long underwear that will keep you comfy and toasty during wintertime
  • Long johns that are comfortable to wear under your ski-wear or jeans
  • Machine washable thermals for men that won’t fray, rip, or sag even after repeated washings
  • Made of quality spandex based and polyester fabric with moisture-wicking fibers
info:
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Specifications

Clothing size

XL

Fabric content

90% Polyester

Sleeve length style

Long Sleeve

Color

White

Directions

Fabric Care Instructions

Machine washable

Warranty

Warranty information

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Customer ratings & reviews

4.9 out of 5 stars
stars
15 ratings10 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars93% (14)
  2. 4 stars7% (1)
  3. 3 stars0% (0)
  4. 2 stars0% (0)
  5. 1 star0% (0)
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Showing 1-3 of 10 reviews

Oct 16, 2026
Reviewer name: CraigV
5 out of 5 stars
5 out of 5 stars review

Game changing comfort for thermals

These were amazingly comfortable and warm at the same time! Honestly, I've never really liked thermals because they always seemed like a hassle for the minimal benefit they give. I found myself wanting to wear these just because they were so comfy. The inside of especially soft. I'll actually reach for these when I need some warm layers. One thing that did bug me is that it seems like I needed to pull them up past my belly button to get them to fit right. I prefer a secure fit over low riding so I just had to adapt.

Incentivized Review
Review from influenster.com
Helpful?3THYA5TYDXJ52162900419
Oct 12, 2026
Reviewer name: SangamK
5 out of 5 stars
5 out of 5 stars review

Thin, Lightweight, & Breathable Thermal Underwear

I was really impressed how lightweight, warm, and thin these Rocky Thermal underwear are. The durable poly-spandex blend keeps them in place without sagging over time. With its reinforced stitching and elastic waistband and bottom bands keep them well positioned during use. After using it for a while I observed these have pretty good air permeability and didn't feel overheated. These dry pretty quickly after wash while still hold the shape intact. These underwear are so thin, they easily glides under jeans and trousers without making it feel bulky.

Incentivized Review
Review from influenster.com
Helpful?3THYA5TYDXJ52162900419
Sep 29, 2026
Reviewer name: JustinH
5 out of 5 stars
5 out of 5 stars review

Soft, comfy, and warm!

Oh man these things are super comfortable to wear. The inside is lined with soft material that will help to keep you warm during the colder months. Stretchy and performed great for me!

Incentivized Review
Review from influenster.com
Helpful?3THYA5TYDXJ52162900419
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