12 Best Long Underwears in 2018

Underwear is generally that base layer of clothing that we wear directly on the skin, under our garments. It is meant as a defense to guard us against cold weather or keep us sweat-free during periods of activity. They’re also meant to be snuggly so that no lines will be visible under your day clothing.

If you are looking for the best long underwear to ward off discomfort, this guide will offer you some ideas. We will tell you about the different types of underwear, what they are made of, and how to make the overall best choice.

Top 12 Long Underwears Ultimate Table

DesignNameGenderFabricRating (1-5)
  1. Minus33 Merino Wool Men’s Kancamagus Midweight Bottom Men Merino Wool 4.7
  2. Ekouaer Women’s Long Thermal Underwear Fleece Lined Winter Base Layering Set Women Cotton, Elastane 4.6
  3. Duofold Men’s Mid-Weight Wicking Thermal Pant Men Cotton, Polyester 4.5
  4. Carhartt Men’s Base Force Wicking Cotton Super Cold Weather Legging Men Cotton 4.5
  5. FX Mens MAXHEAT Fleece Compression Performance Long Johns Thermal Underwear Men Polyester, Polyurethane 4.4
  6. Hanes Men’s X-Temp Thermal Pant Men Cotton, Polyester, Heather Grey 4.3
  7. ColdPruf Men’s Basic Dual Layer Base Layer Bottom Men Combed Cotton, Polyester4.3
  8. Terramar Women’s Thermasilk Pant Women Silk 4.3
  9. Duofold Women’s Mid Weight Fleece Lined Thermal Legging Women Polyester, Spandex 4.3
  10. Men’s Ultra Soft Thermal Underwear Long Johns Set with Fleece Lined Men Polyester, Spandex 4.2
  11. Liang Rou Women’s Crewneck Stretch Top & Bottom Thin Thermal Underwear Set Women Cotton, Spandex 4.2
  12. Terramar Men’s Thermasilk Pant Men Silk 4.1

Purchase Information

Long underwear is meant to feel like a second skin, with a tight and snug fit. It should also have enough stretch to be comfortable and not create bulges. If you buy long underwear for winter sports activities, for example, you need to make sure that it also wicks away moisture and keeps your skin dry.

As you can see, choosing the best long underwear is not as easy as saying “just pick something I can wear under my clothes.” While other people can’t see it, you’ll definitely FEEL it.

Choosing the Fabric

There are many types of fabrics used to make long underwear. They can be 100% pure or made from blends to grant more benefits. Here are the two main categories of materials:

  • Natural – Natural long underwear will be made from cotton, merino wool or silk. Cotton is soft and can absorb the moisture, while merino wool and silk can provide extra warmth and a dash of wicking properties.
  • Synthetic – These include nylon, polyester, Spandex, and Lycra. They are pretty durable, can stretch and wick away moisture very well.

Each of the fabrics has their pros and cons. The wrong synthetic blend may make you sweat too much and give off a bad smell while the improper cotton blend will only absorb the sweat, without allowing it to be wicked away. That’s why most people opt for combinations, to get the best out of two worlds.

Types of Long Underwear

When talking about long underwear, many people believe that only the lower part acts as underwear; however, that is only half true. Long underwear can also be categorized as follows:

  • Tops – These are long-sleeved shirts that will fit under your clothes while allowing you freedom of movement. They should fit snuggly, but not too tight.
  • Bottoms – Commonly referred to as “long johns,” these are leggings that will fit perfectly and end just under the ankles. Being the first thing that the skin touches, these should provide supreme comfort.
  • One Piece – While not a very popular choice, some people may opt for one piece underwear. Since there are no “loose ends,” it’s unlikely that your back will remain bare; however, going to the bathroom may be all the more complicated (especially if you are a lady).

The popular choice is to buy sets comprised of top and bottom long underwear. They are easily handled, and they provide their separate functions and warmth.

Long Underwear Fabric Weight

Weight is not universal for long underwear; you have several alternatives to choose from, depending on your preference, your body type and – obviously – the weather. Here are the main types of weight you will find when looking for long underwear.

  • Lightweight Long Underwear – The best choice when the weather is warmer, these are the thinnest kinds of fabrics. It is also the preferable option if you tend to overheat easily.
  • Midweight Long Underwear – These work as insulators and wick away the sweat. These are the regular choices for most winter conditions, as well as late autumn and early spring.
  • Heavyweight Long Underwear – These can wick away moisture and act as a thick insulator. It’s perfect for those who get cold very easy or if the temperature is extremely low.

Before choosing your underwear, decide on your activity. If you plan to wear them under your regular clothes, you may want to go for lightweight or midweight long underwear. On the other hand, if you go skiing, you may want to opt for a thicker long underwear set.

Top 5 Best Long Underwear Reviews

1. Minus33 Merino Wool Men’s Midweight Bottom

Our grandmothers and grandfathers used to wear all kinds of wool clothes during the winter to keep themselves warm. If it weren’t for the slight inconvenience of itchy skin, the warmth would have been an amazing asset.

Well, this pair or long underwear isn’t exactly your regular wool; it’s merino wool. Not only will you be ditching the itch, but these long johns also have incredible moisture wicking properties that allow the fabric to dry fast.

Moreover, they are smell-proof. Not in the sense that you can wear them for a week without washing them, but they will definitely last you more than your regular cotton or synthetic underwear.

These long johns are smooth like silk, comfortable and very durable. They will fit snuggly around your legs and will last you through this winter without breaking a sweat – literally. You can also wear them on and on, and they will still look like brand new.

Overall, you’ll definitely love this long underwear piece. It will keep you warm, dry and you definitely won’t feel more restrained than you have to. It will literally feel like a second layer of skin.

2. Ekouaer Women’s Long Thermal Underwear

The reason we wear long underwear is most definitely that we want to protect ourselves from the cold – which is why a double-layered thermal underwear set is just what the doctor ordered.

Made from 95% cotton and 5% elastane, this long underwear set is very comfortable, warm, soft, thick and moisture wicking.

It’s great if you want to go practice winter sport or if it seems like the North Pole suddenly made its way into your hometown.

They may be double-layered, but they are not in any way bulky. Since they are pretty elastic, they will fit beautifully around your body and will not be visible in any way. As far as anyone is concerned, under your sexy jeans will be just regular skin.

Overall, this long underwear set is definitely a must-have that will keep you nice and cozy. They are also pretty durable, so you won’t have to worry about replacing them anytime soon.

3. DUOFOLD Mid-Weight Wicking Thermal Pant

This classic thermal underwear pant is definitely something you will want to add to your collection; you’ll surely love the feeling of the fabric on your skin.

Made from a blend of cotton and polyester, they are not only moisture absorbent but moisture wicking as well.

These thermal underwear pants are warmer than a Pooh Bear. They will keep everything warm, even when there are freezing temperatures outside. They also fit snuggly, so the addition of another layer of pants will not be a problem.

The material is breathable, so your legs won’t end up feeling too hot either; everything will be just right!

The only con that this underwear piece has is that it will probably hoard off your friends and family from you simply because they will be jealous of how warm you will feel in the middle of the winter!

4. Carhartt Men’s Cold Weather Legging

If you are the kind of person who starts freezing the minute you see the first snowflakes falling, then these longs johns are definitely the ones for you.

They are made of the thickest and warmest fabric that you will probably ever touch – not to mention that they are extremely comfortable.

These will keep you warm through every winter without making you sweat under your clothes. They are breathable, easy to handle and they fit perfectly around your legs so that there won’t be any bulges. You can easily rock a pair of jeans over these babies.

Once you have seen for yourself how well they can protect your lower body part from the cold, you will definitely not think twice about purchasing a second pair of these.

5. FX Mens MAXHEAT Thermal Underwear

Made from 93% polyester and 7% polyurethane, these represent the perfect gear for cold winters.

Regardless of where you are going or what you are doing, this long underwear set will keep your skin dry and warm from top to bottom.

They fit like a glove, which means they will not be visible under your clothes; you’ll just FEEL the warmth.

If you suddenly find yourself out in cold weather without a jacket, it won’t be much of a problem to you; they work by keeping the warmth inside.

They are a great alternative to traditional long johns since they do not creep or form bulges; all you’ll feel is the comfort.

Final Thoughts

Long underwear, regardless if it’s top or bottom, needs to fit snugly from the moment you put it on. Since it is meant to go under another layer of clothes, it can’t hang loose, lest you might find yourself with bulges. It needs to be a tight fit, but not so tight as to be uncomfortable.

So far, the winner for best long underwear is Minus 33, since it provides the best fit and warmth. Duofold is also pretty popular among both men and women, but you will definitely not have any problems by choosing any one of the models mentioned.