Let’s be honest: Thermal underwear is probably the least sexy type of underwear for men on the market. On the other hand, these are some of the most functional bottoms, as they support more than just your privates, providing coverage for your entire lower half.
And of course, as their name suggests, the main reason to sport these underpants is to keep you warm in the colder winter months. So, unless you are willing to brave the freezing temperatures without a little much-needed buffering, it’s time to embrace these hardy skivvies as a must-have wardrobe.
But, better yet, the best thermal underwear for men available today has evolved from the pale long pants of yesteryear into a subset of more types and styles to cater to even more needs. On top of that, they are great for lying under your favorite winter sweater and winter jacket.
Current choices range from everyday base layers to those more worthy of eating at home, with the influence of relaxation over the years leading to more advanced thermal agents that are resilient enough to keep things fun during the most extreme outdoor activities.
No matter what your reason for looking for these cool-weather basics, look no further than these 10 best men’s thermal underwear picks.
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Mack Weldon WARMKNIT Long Underwear
The menswear brand Mack Weldon, founded in 2011, which develops its own materials, has quickly climbed the ranks as a top supplier of men’s basic items, with its thermal underwear no exception. Case in point: The brand’s WARMKNIT fabric made in a micro-wafer knit and with their insulating Thermolite technology provides a wonderful base layer that keeps the temps just right.
Smartwool Merino 250 Base Layer Bottoms
Proud of its Merino wool items developed for the outdoors, Smartwool’s base layer tights offer more than enough warmth without any of the claustrophobic stuffiness. Thanks to the lingerie’s 100% Merino wool interlock knitted fabric construction (with this pair being the brand’s heaviest weight), sweat is chased away and odors are kept away without losing any heat.
Patagonia Mans Capilene Air Bottoms
The outdoor clothing brand’s Capilene base layer, made from recycled polyester and blended with Merino wool from New Zealand (ethically sourced, we might add), results in a soft, stretchy and quick-drying pair of trousers that retain heat while also working hard to to pull up. moisture and reduce odor. Convenience is also a priority, as the seamless 3-D construction reduces abrasion while the front cross’s double layer adds extra support to your package.
32 Degree Men’s Heat Base Layer Leggings
A winner in versatility, this presentation at 32 Degrees consists of a soft, lightweight four-way stretch fabric that is equally functional as loungewear, gym equipment or as an everyday base layer trousers. The biggest win? You get it all without breaking the bank.
Under Armor Mans HeatGear Armor Leggings
You’ve probably integrated at least some clothing through the sportswear giant into your wardrobe, and if you haven’t yet, adding Under Armor base layer leggings is worth adding to the basket. The stretchy and lightweight HeatGear fabric contains anti-odor technology, moisture wicking and fast-drying properties, making it an ideal match for the man who likes to be on the move.
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CDLP Long Johns
If you are determined to keep your underwear game as sexy as possible, then a pair of CDLP long pants are the way to go. When the Swedish design house was launched in 2016, it had one goal in mind: To transform men’s underwear. Made from Lyocell — the most durable cellulose fabric found in wood — their thermal products offer a more customized look without compromising on warmth and comfort.
Indera Mans Icetex Performance Thermals
The American company has long been considered one of the first suppliers of thermal products, and even today its items have a lot to boast about. These Icetex underwear brand several boxes, from the provision of heavyweight heat to the odor-fighting properties of the fabric’s Silvadur technology. Thanks to the brushed inner layer of the raschel knit, your stuff is guaranteed to stay stiff and dry during your outdoor adventures.
Carhartt Force thermal base layer pants
When it comes to thermal underwear, you may have come across items made in a waffle iron. And for good reason — this blend does an exceptional job of meeting all your needs: absorbing heat, absorbing odors, and conducting moisture through its fast-drying and sweat-wicking elements. Add to that Carhartt’s robust bending technology that makes it a breeze to move around, with the added benefits of tactically placed seams that reduce abrasion and improve comfort.
Lululemon Vital Drive Training Tights 28 “
With yoga as the core of the company’s ethos, it should come as no surprise that this base layer contains four-way stretch fabric that drains moisture, dries quickly and is abrasion resistant. But Lululemon has taken it to the next level. These training shorts include a grip on the inside that matches the body’s most important muscle groups, to keep the panties in position and to promote muscle stability. Very impressed? You have to be.
Minus33 Merino Wol 706 Kancamagus Midweight Bottoms
Minus33, founded by textile engineers in 2002, increased the thermal gear condition with their base coats. An excellent example of the brand’s winnings includes these middleweight parts made from 100% Merino wool in an interlock knitted construction. Simply put, a guarantee that you will stay warm – yet sweat-free – whether you fancy an arctic run, a snowboarding expedition, or simply going out to buy groceries in the middle of winter.
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