Best Thermal Underwear For Men


The underwear is the most personal and private piece of clothing. Since it is right next to the skin, it has to be chosen with care to ensure warmth and much comfort.

Important Facts to help you choose the Best Thermal Underwear for Men

Winter comes and with it comes the cold. We have dusted the coat and the scarf, and yet that cold is too severe to keep us warm.

You want to buy a new thermal underwear, but you keep asking yourself how to choose the right one.

Here we will explain the characteristics that a good thermal underwear must have.

First... Look At The Material Used

The fibers with which the clothes are made are the ones that will give the properties to the garment. Cotton is not the same as wool, silk, polyester or polyamide.

You must look at the label to check what materials and percentages of these materials are used to make the thermal underwear.

Second... Select Insulating And Breathable Fibers

What makes the garment thermal is that it isolates the cold and the heat. That is, your body will generate heat which the garment should prevent from being lost into the outside, just like the insulation of the walls of the houses.

Therefore, the better the insulation material, the warmer you will be.

Below we show you which fibers work best:

1st. Wool
2nd. Silk
3rd.  Polyester
4th.  Cotton


Wool and silk are the first since their structure generates air microbubbles inside the fiber. This makes it a great insulator which will absorb the moisture of your body. It forms a layer of air between the skin and the garment that adds insulation.

This is so in winter but, contrary to what we believe, it can be a good insulator of heat even in summer. Let us not forget that the Tuareg people wear clothes made of wool to live in the desert and isolate themselves from the high temperatures.

In addition, wool is antibacterial and eliminates odors.

We can also add to this the fact that natural fibers like wool and organic silk are without any chemical treatments, which only affirms that they are the best thermal materials to use.

Regarding cotton or organic cotton, this is a material that absorbs moisture well and has a very nice feel but it does not provide as good insulation as the wool. However, you can use it as an extra layer of clothing which will give you some protection in the cold.

​When it comes to polyester, you should know that basically it is plastic and as such, it is not breathable. It will not let your sweat evaporate so it will not let out the moisture.

To combat this problem, a large number of synthetic fibers are being used, or other polyester and polyamide materials to provide you with warmth.

In many cases, manufacturers are using a mixture of cotton and polyester which can work well. It will not give you the same warmth as wool but that is where cost factors come into play. Thermal products made of wool and silk are a lot more expensive.

In order to help you decide here we have reviewed some of the best thermal underwear brands:

Duofold Men's Mid-Weight Wicking Thermal Pant

Duofold Men's Mid-Weight Wicking Thermal Pant

This Duofold thermal pant is a soft and comfortable wear for men. It is made up of 60% cotton and 40% Polyester, hence it is soft, warm, comfortable and a perfect fit for men. It can be machine washed.

The Duofold Men's Mid-Weight Wicking Thermal Pant is a base-layer thermal pant with two-ply cotton flatlock seams and a moisture-wicking waistband giving warmth to the body. It has a soft texture-rich knit that traps air between the two thermal layers and provides a chill-blocking barrier that keeps you comfortably warm.

This unique thermal pant allows you to keep working outside during chilling times, so if what you want is to be comfortable and not sacrifice your warmth, this is the underwear to choose. There is a wide choice of sizes available to suit almost everyone. 

Fruit of the Loom Men's Classics Mid Weight Thermal Bottom

Fruit of the Loom Men's Classics Mid Weight Thermal Bottom

You can get perfect comfort and fitness with Fruit of the Loom Men's Classics Mid Weight Thermal Bottom. This product is imported and machine washable.

It comes with warm waffle thermal buttons for cold weather and is a combination of 60% Cotton and 40% Polyester making it a sturdy and durable fabric.

The mid weight cotton rich fabric wicks away moisture to keep you comfortable, retains heat to keep you warm and stretches better to give perfect fitness for men. It has a touch of spandex at the ribbed cuffs to stay snug on your ankles, and for itch free comfort, it has a tag free elastic waistband.

This product is well-made and promises high quality, value and style. The stitching is good and has no loose threads. The knit cuffs keep the sleeves and bottom of the pants close to the body so that air won't get through.

It is also a statement of fact that this brand of men's wear can be trusted.

Hanes Men's X-Temp Thermal Long Sleeve Top

Hanes Men's X-Temp Thermal Long Sleeve Top

The Hanes men’s thermal top is made of excellent materials and is machine washable. It is long sleeve and has a crew-neck top in waffle knit that adapts to body temperature. It also has a ribbed cuffs and shrinkage controlled.

This top has a perfect fit, that is, it is neither too tight nor baggy. It is comfortable to the skin, comes in several sizes and does not shrink after washing. This is the perfect light shirt to layer your fall or winter wear.

It is soft, itch free, and can be worn outdoors for extended periods and still keep you warm. It has a perfect weight, not too heavy neither too light, and adapts to your body temperature. This product is highly commended for the satisfaction it gives for its price.

Thermal Tek Men's Fleece Lined thermal top and Bottom Underwear Set

Thermal Tek Men's Fleece Lined thermal top and Bottom Underwear Set

The fleece lines thermal top and bottom is a well-made tag-less design which is lightly fleece lined to give additional warmth and maximize thermal insulation. It is machine washable and has a shrink control.

This product can be deceiving in its look because it is lightweight, yet it gives a high weight to warmth ratio. This thermal set is made from ultra-soft microfiber and spandex, and makes a great addition during winter.

The moisture wick material keeps you dry, itch-free and warm throughout the winter.

It is perfect for lounging indoors as pajamas and for any outdoor activity like Ski or Snowboarding. By wearing this thermal underwear, you can get a lot done without fear of cold and with the knowledge that you are well covered.

Duo fold Men's Mid Weight Wicking Crew Neck Top

Duo fold Men's Mid Weight Wicking Crew Neck Top

This crew neck top is an imported, machine washable and moisture control top, recommended to be worn during cold weather and when carrying out low-impact activities.

It has a double-layer thermal for warmth in cold weather and comes with a flat lock seams to prevent irritation. It is an all-purpose everyday use thermal top which is designed to give warmth and comfort with two-layer protection coupled with a close-to-body fit.

​This is a quality product that has a superior comfort moisture control to help you stay dry and tag less for maximum comfort. It is soft, itch free as well as warm, and is recommended as a rainy season wear.

​In addition, it does not lose its quality after washing and has a perfect weight, not too heavy neither too light. Overall, it is a highly recommended base wear for your cold weather layering system that promises to hold up exceptionally over the years.

ColdPruf Men's Platinum Dual Layer Bottom

ColdPruf Men's Platinum Dual Layer Bottom

ColdDruf Men's Platinum Dual Layer Bottom​ promises the maximum warmth and comfort as well as a perfect fit. This product is composed of 100% CPT Performance Polyester inside and 70% Polyester Outside with Merino Wool to blend comfort, warmth, dryness and odor control.

This double layer garment is specifically made to trap air between its layers and provide a natural warmth shield. It is an imported tag-less garment with front and back rise and flat seams.

There is also a comfortable logo waistband and gussets that offer true sizing for a perfect fit. It is suitable for extreme cold weather as well as high activity. This product is made to keep you warm even when wet.

It is itch free and the elastic band has a base layer that works well. The inner lining is soft. If you work outside or do a lot of external activities and need a good thermal underwear, then this may just be right for you.

Men's Ultra Soft Thermal Underwear Long Johns Set with Fleece Lined

Men's Ultra Soft Thermal Underwear Long Johns Set with Fleece Lined

Perfect your indoor/outdoor winter activities with Men's Ultra Soft Thermal Underwear Long Johns Set. The product is a well-designed quality 2 pieces thermal set that is ultra-soft, warm and comfortable.

The product is made of 92% Ultra-Soft Polyester, 8% Spandex and it is four ways stretched to give a perfect fit. The ultra-soft microfiber is lightly fleeced to provide additional warmth and has a thermal insulation which is breathable, moisture wicking and gives good warmth.

This product is highly recommended for men because it is soft inside, smooth outside, and fits easily underneath clothing too. It is also multi-purpose because it can be worn at home, out to work or anywhere.

The product comes in two pieces, top, and bottom and a variety of four colors. (Black, Navy, Grey and white). When it comes to this thermal underwear, one thing is for sure: the term "ultra soft" is dead on!

Rocky Men's Thermal 2pc Set Long John Underwear Smooth Knit

Rocky Men's Thermal 2pc Set Long John Underwear Smooth Knit

This Rocky Men’s long john underwear is a thermal two pieces set, both top and bottom, with thermal knit that retains the body heat and double layer smooth knit cuffs to keep you warm and comfortable.

It is made from a combination of 55% Cotton and 45% Polyester which makes it lightweight but warm. This underwear is perfect for athletes and can serve as pajamas, too. It has a soft ribbed crew neck with a fly front.

It is made of good quality fabric and without any shrinkage after washing. The Rocky Men's Thermal is highly recommended because it is lightweight, incredibly soft and comfortable.

When ordering, it is advised that you order one size up for a comfortable and perfect fit for men. 

Tesla Men's Thermal Winter Gear Compression Base Layer Pants Leggings Tights 

Tesla Men's Thermal Winter Gear Compression Base Layer Pants Leggings Tights

The Tesla Men’s thermal pants are constructed with 3-Dimensional Patterns and composed of heat retention fabrics like 87-90% Polyester and 13 - 10% Spandex, giving maximum comfort and excellent insulation.

It is a well-designed winter gear which is made up of a thermal shirt and pants. This is the perfect option for both indoor and outdoor activities. It is moisture sensing, dries quickly and has a two-way air circulation.

This product is designed to prevent body heat loss and regulates the body temperature during cold weather. It has an extra layer which is intended to prevent rashes, draw sweat and moisture away from the body, thereby deodorizing unpleasant smells left behind from the sweat.

The pants are stylish and fashionable, perfect for daily wear giving an impressive fitness.

Highly recommended for athletes as well as the men involved in sporting and recreational activities because it helps prevent muscle strain and improves body performance. This product is the perfect base layer for your winter wear.

ColdPruf Men's Basic Dual Layer Crew Neck Base Layer Top

ColdPruf Men's Basic Dual Layer Crew Neck Base Layer Top

The dual layer crew neck top is tagless, and has a flat seam and extended tail for comfort and durability. The fabric is composed of 60% combed ring spun cotton and 40% Polyester to give exceptional softness.

It is made from ring spun yarns that give exceptional softness and freshness. This product is also itch free with an elastic band and has a base layer that works perfectly well. It can be used during cold weather and low to medium activity.

The double layer garment comes with a crew-neck base layer top constructed to trap air between the layers of texture to provide a comfortable and natural warmth. It is super soft, machine washable and dries fast.

Carhartt Men's Base Force Wicking Cotton Super Cold Weather Leggings

Carhartt Men's Base Force Wicking Cotton Super Cold Weather Leggings

Carhartt is known as a company that makes sturdy and dependable clothing for the man who enjoys spending time out of doors, and these Men's Super Cold Weather Leggings are ideal for the great out of doors.

They come in sizes small to 4Xlarge and in your choice of black or white. They are machine washable, made from 100% cotton and have a layer elastic band.

Cold Pruf Men's Basic Dual Layer Base Layer Bottom

Cold Pruf Men's Basic Dual Layer Base Layer Bottom

Designed for cold weather, these dual layer base layer bottoms are made from 60% cotton and 40% polyester with flat seams and a tagless label for added comfort.

They come in your choice of sizes from small to 3X large tall and are available in two colors, white and black. They are designed to provide comfort and warmth whether you are at home or outdoors.

​Users comment that they are very well made and the fabric feels soft, however, I did come across couple of comments that the ankle is quite tight but with the usage, it should open up a little.

Unique Styles Men's Thermal Underwear Sets

Unique Styles Men's Thermal Underwear Sets

This Waffle knit thermal underwear set comes in assorted colors and in sizes large to 5 X Large. Made of soft and comfortable material, this product is made from 60% cotton as well as 40% polyester and is easily machine washable.

It has double stitching and feels soft and comfortable. It is also not one of those thick garments, and you can easily wear it to sleep as well as use it as an under garment with layers of other clothing over it.

Hanes Men's X Temp Pants

Hanes Men's X Temp Pants

Made from a 60/40 cotton polyester blend waffle knit with cuffs, these Hanes X Temp pants have the logo stamped on the elastic waist and they are machine washable. They are  also warm and comfortable, and provide a good fit under your jeans or other pants.

​Users comment that these are nice mid-warmth thermal pants, not overly bulky, and they can be worn underneath work clothing. They are too light for below zero weather but thin enough to put another layer of clothing on top.

CYZ Men's Thermal Long Sleeve Crew Top

CYZ Men's Thermal Long Sleeve Crew Top

This CYZ Men's Thermal crew top comes in sizes small through X large and colors are black, white or white/navy. It is made from 60/40 cotton Polyester waffle knit with a tag free label and has long sleeves. This top is shrinkage controlled and has ribbed cuffs.

The fabric of the shirt is thin, but very warm. It is a bit tight in the arms and chest though, so you should consider a size larger if you don’t like a tight fit. This is not a super warm underwear and is good as an extra layer of clothing.

Duofold Men's Mid weight Double-Layer Thermal Pant

Duofold Men's Mid weight Double-Layer Thermal Pant

These Duofold Double-layered thermal pants have an outside layer that is 65% cotton, 25% Merino wool, and 10% nylon while the inside is 100% cotton.

These pants come in sizes ranging from small to XX large and you get a choice of color between blue jeans and olive Heather. They are mid-weight with flatlock seaming, machine washable and have a tagless label.

Users say that they are snug but not too tight. If you are not a skinny person, you should go for a size bigger. Some people have used this garment for years without any problems and have found that it is super value for the price.

Carhartt Men's Base Force Wicking Cotton Super Cold Weather Crew Neck Top

Carhartt Men's Base Force Wicking Cotton Super Cold Weather Crew Neck Top

This Carhartt thermal underwear crew neck top comes in sizes small through to 2X large and the colors are white or black. Made of 100% cotton, it is moisture wicking and includes stain breaker technology with a logo on the hem. This top is machine washable as well as comfortable and warm.

​In addition, it is 9.5 ounces and made of ring-spun cotton. No worries if you sweat a lot since this crew neck wicks away sweat. The stitching is reinforced, there is a tagless neck label as well as rib-knit cuffs that keep you in warmth.

Duofold Men's Heavy Weight Double Layer Thermal Pant

Duofold Men's Heavy Weight Double Layer Thermal Pant

This Duofold Men's Heavy Weight Double Layer Thermal Pants come only in black and in sizes ranging from small to Xx large. They are made from a 96% polyester and 4% spandex blend material and feature a drawstring waist and a tagless label. They are also machine washable.

​Users say that these heavy weight, double layer thermals function very well in keeping out the chill and maintaining body heat while  they are skiing and hiking through snow and a high altitude climate.

Some people had problems with the size which was reported and it is expected that this problem has been rectified now.

Duofold Men's mid weight Fleece Lined Thermal Shirt

Duofold Men's mid weight Fleece Lined Thermal Shirt

Made from a polyester/spandex blend, this fleece lined thermal shirt is quick drying and has soft-stitching for less chaffing.

It comes in sizes small to Xx large and your choice of color between black, stormy night (gray) Asteroid camo, and Scarlet Asteroid. It has thumb holes for added warmth and is machine washable.

It also has a quick drying vapor technology which evaporates moisture fast. The brushed fabric helps prevent the loss of body heat and provides warmth. Some users highly recommend this product as they find it a great value for the price and say that it is super warm and nice looking.

Duofold Men's Mid-Weight Varitherm Thermal Pants

Duofold Men's Mid-Weight Varitherm Thermal Pants

This Duofold Mid-Weight thermal pants come in sizes small through XX large and in 4 different colors. Made from a polyester and spandex blend, these machine washable thermal pants are mid-weight and have a drawstring waist. 

​Users say that the soft thermal fabric locks in your body's warmth. Plus, it helps control garment odors. It has a special wicks moisture technology and the tag free elastic waist provides added moisture control.

Access Men's Heavyweight Long Sleeve Thermal Crew Neck Top

Access Men's Heavyweight Long Sleeve Thermal Crew Neck Top

This Access Thermal crew neck top ​is a shrink resistant rugged waffle knit top that comes in sizes small to 5Xlarge and a wide variety of colors.

​It features a crew neck and long sleeves to help provide all over warmth. You get a choice of many colors and is machine washable.

​Users find it very warm and some even say that it’s too warm. People are happy with the sizes and say that it is definitely worth the price.

Duofold Men's Heavyweight Double Layer Thermal Shirt

Duofold Men's Heavyweight Double Layer Thermal Shirt

This Duofold Heavyweight double layer thermal shirt comes in sizes small through XX large and is available only in black. Made from a polyester/spandex blend with a drop tail hem and flatlock seaming, this shirt bears a tagless label and is machine washable.

Users find it a little expensive, however, they say that it is worth every cent. The drop down "flap" on the back of the shirt works very well to insulate the body. ​

All in all, if you are looking for the best thermal underwear for men, our top rated selection above may help you to find the one that suits you best.