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SLM Men’s 100% Cotton Thermal Underwear Sets Warm Waffle Knit Long Johns

3.6 stars out of 193 reviews

(3.6)|

Color:Dark Gray

Black, $17.99

Blue, $17.77

selected, Dark Gray, $17.99

Gray, $17.99, Out of stock

Off White, $18.75, Out of stock

White, $17.99, Out of stock

Clothing Size:XL

Key item features

Premium Cotton Blend: This two-piece thermal underwear set, including a long sleeve shirt and pants, is crafted from 100% premium cotton blend for softness and protection against chilly weather.
Waffle-Knit Comfort: The waffle-knit pattern traps heat, providing extra smoothness and luxurious feel on the skin, while the lightweight material ensures a comfortable fit without bulk.
Flexible Four-Way: Both the top and bottom feature a four-way stretch, allowing for unrestricted movement and flexibility during various activities.
Versatile Seasonal Wear: Ideal for cold weather seasons (Fall, Winter, Spring), these thermals are suitable for work, school, errands, or relaxing, and come in Light Gray, Black, and Navy Blue.
Maximum Thermal Warmth: Meticulously designed with a waffle knit to effectively trap heat, creating an insulating layer for utmost warmth in cold temperatures.
Activity-Ready Base: This versatile base layer is perfect for various cold-weather activities like skiing, winter hikes, or everyday errands, empowering active lifestyles.

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Reviews summary

Pros

: Made of lightweight materials for comfort.
: Constructed with natural fibers.
: Adds a lightweight, non-bulky feel to outfits.
: Offers good value considering quality.

Cons

: Sizing may not match expectations, consider sizing up.
: May not be entirely cotton, potentially blended with other materials.

Generated by AI

Current price is $17.99

Price when purchased online

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3.879509111193753 stars out of 5, based on 2690 seller reviews(3.9)

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About this item

Product details

As the winter chill sets in, staying warm and comfortable becomes a top priority. SLM understands the importance of keeping men warm during the cold season so we have designed our SLM Men's Cotton Thermal Underwear Sets Waffle Knit Long Johns. We offer a comprehensive solution with our Cotton Thermal mens underwear, featuring warm waffle knit Long Johns for men. This versatile set, comprising both a top and bottom, guarantees to keep you cozy and comfortable throughout the winter months. This ultra-comfort thermal set will keep you feeling toasty throughout the season. The set is made of lightweight and breathable cotton, which provides maximum insulation and warmth to your body. Great for everyday wear, whether you're relaxing inside the house, enjoying the outdoors, or running daily errands. These thermal sets come in various colors like Light Gray, Black, and Navy Blue, making them easy to layer and coordinate with different outfits. The classic waffle knit pattern looks great under coats and jackets. These cozy thermal sets are extra smooth and luxurious on the skin due to their waffle-knit pattern that traps heat and keeps you snug all throughout the day. Lightweight material provides a comfortable fit without extra bulk. Both long sleeve top and thermal shirts for men have a four-way stretch that provides unrestricted movement allowing you to move freely while you're on the go. When the temperature drops, SLM Thermal Underwear for Men is your reliable companion to combat the cold. Our Cotton Thermal Underwear Man Sets with warm waffle knit Long Johns are your ticket to winter comfort and warmth. Don't let the winter blues hold you back; stay warm, stay comfortable, and stay stylish with SLM. Upgrade your winter wardrobe today and experience the difference for yourself.

Size, Fit, Material - This thermal underwear set comes in 2 pieces, including a long sleeve shirt and a pair of pants. They are made of 100% premium cotton blend, protecting you against chilly weather while feeling soft on the skin. Sizes range from S-3XL.
Comfort and Feel - These cozy thermal sets are extra smooth and luxurious on the skin due to their waffle-knit pattern that traps heat and keeps you snug all throughout the day. Lightweight material provides a comfortable fit without extra bulk. Both top and bottom have a four-way stretch that provides unrestricted movement allowing you to move freely while you're on the go.
Versatile - Perfect for cold weather seasons (Fall, Winter, Spring). Functional for all activities such as going to work or school, running errands, or relaxing inside the house. Thermal sets come in various colors (Light Gray, Black, and Navy Blue) and sizes, making them easy to style and layer. Thermals are an excellent gift for the holidays (Christmas, New Year's, Birthdays, and more). A great gift idea for dad, husband, grandpa, or brother!
✨【CRAFTED FOR MAXIMUM WARMTH 】- Our SLM cotton underwear for Men is meticulously crafted to provide you with the utmost warmth during the coldest of weather. The waffle knit design traps heat effectively, creating an insulating layer that keeps you toasty, no matter how low the temperature drops. Say goodbye to shivers and discomfort.
✨【VERSATILE & STYLISH DESIGN】- Perfect for cold weather seasons (fall, winter, spring). Functional for all activities such as going to work or school, running errands, or relaxing inside the house. Designed for the modern man, our underwear men come in a sleek and stylish design that fits perfectly under your regular clothing. You won't have to compromise on style to stay warm. Our mens underwear sets come in various colors (Light Gray, Black, and Navy Blue) and sizes, making them easy to style and layer. Thermals are an excellent gift for the holidays (Christmas, New Year's, Birthdays, and more). A great gift idea for dad, husband, grandpa, or brother!
✨【SIZE, MATERIAL 】- This thermal underwear set comes in 2 pieces, including a long sleeve shirt and a pair of pants. These mens thermals top and bottom set are made of a 100% premium cotton blend, protecting you against chilly weather while feeling soft on the skin. Cotton Thermal Underwear Sets are made from premium quality cotton, renowned for its excellent heat-retaining properties. Sizes range from S-3XL
✨【IDEAL FOR VARIOUS ACTIVITIES 】- SLM's mens thermal underwear is versatile and suitable for various cold-weather activities. Whether you're hitting the slopes, taking a winter hike, or simply bracing the cold for everyday errands, our men underwear provides the essential base layer to keep you snug and cozy. Don't let the weather dictate your plans; our thermal wear empowers you to stay active even during the coldest months.

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Specifications

Fabric content

100% Cotton

Long underwear type

Thermal Sets

Clothing size

Gender

Male

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

3.6 out of 5 stars

stars193 ratings82 reviews

How item rating is calculated

Reviews summary

Pros

: Made of lightweight materials for comfort.
: Constructed with natural fibers.
: Adds a lightweight, non-bulky feel to outfits.
: Offers good value considering quality.

Cons

: Sizing may not match expectations, consider sizing up.
: May not be entirely cotton, potentially blended with other materials.

Generated by AI

Customer photos

Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.

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Showing 1-3 of 82 reviews

Feb 6, 2026

GoldenRooster

Item details

Color: Blue

Clothing size: XL

Sold byStyle Like MineDelivered byWalmart

5 out of 5 stars review

Verified Purchase

Good quality, cotton

Fitment is a little small. I ordered an XL and I usually wear a large. label says 100% cotton, and it feels like cotton. These seem a little thin, but they do they job and keep you warm. 5-stars

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Feb 4, 2026

Item details

Color: Black

Clothing size: L

Sold byStyle Like MineDelivered byWalmart

4 out of 5 stars review

Verified Purchase

Decent forPrice

A lot of reviewers have mentioned how thin the material is , but I like that for layering purposes. They say 100% cotton, so I'm going to assume that it's true. They are true to size. Comfort is good underneath ski gear. Held in warmth.

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Dec 30, 2025

Roger

Item details

Color: Black

Clothing size: 2XL

Sold byStyle Like MineDelivered byWalmart

3 out of 5 stars review

Verified Purchase

Value of shopping Wal-Mart

Fit is alright. Material is really thin. It is cotton so not too much warmth expected. The other brand I bought first CREDO, was not acceptable. I should have taken them back. I will donate them at church. I find shopping at Wal-Mart a money saver on some things. Shopping there is NOT a fun trip. The Waltons could really SPEND some $ too improve security.

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SLM Men’s 100% Cotton Thermal Underwear Sets Warm Waffle Knit Long Johns

Key item features

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