On cold winter days, extra layers are a must. But if you plan to hike, ski, climb or hit the gym, having a thin layer that keeps you warm without hindering your movement is crucial to performance. That’s where a base layer comes in. Typically worn next to the skin, it helps regulate core body temperature and prevent moisture buildup. You’ll want to stay away from cotton styles and instead opt for ones made of polyester, which are naturally much more breathable, sweat-wicking and durable. Below, we’ve rounded up our favorite base layer sets for men on the market.
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1. Herobiker Thermal Underwear Set
This thermal underwear set is made of breathable polyester and contains a touch of spandex for added elasticity.
Pros: The included top and pants also feature four-way stretch compression for ultimate comfort. They come in four colors and four sizes to choose from.
Cons: Some may find they sit a little loose.
2. FitExtreme Maxheat Performance Long Johns
These are made mostly pf polyester with a touch of polyurethane and a warm fleece lining.
Pros: .They also offer four-way stretch compression and a silky interior. The tops and bottoms are available as a set and are sold individually.
Cons: These may run on the small side.
3. TSLA Long Johns Set
A blend of smooth microfiber and four-way stretch spandex allow for unrestricted movement in this set.
Pros: They’re lined with microfleece for enhanced warmth and thermal insulation. These are offered in seven sizes with a double-knit neckline.
Cons: Some may find this set a tad snug.
4. Thermajohn Thermal Underwear Set
This polyester-spandex blend set is breathable and lightweight.
Pros: These are offered in eight sizes and five colors. It also comes with a convenient hole in the crotch for when nature calls.
Cons: They may run somewhat small as well.
5. Rocky Thermal Underwear
They come in a generous ten sizes with an open fly design and an elastic waistband for maximum comfort.
Pros: Unlike the others, you can buy these in a lightweight cotton and polyester version, as well as midweight and heavyweight options made mostly of fleece.
Cons: They run small, so you might want to go a size or two up.
6. ViCherub Thermal Underwear Set
Like most others on our list, this set contains a breathable blend of polyester and spandex blend.
Pros: These are also lined with moisture-wicking microfleece. They offer four-way stretch with an elastic waistband and open-fly construction for convenience. They also feature anti-shrinking and anti-static technology.
Cons: They still fit on the narrow side.
7. Devops Thermal Turtleneck Long-Sleeve Shirts
Available in single or double packs, these tops are made from 90% polyester and 10% spandex.
Pros: They are moisture-wicking and designed to fit close to the body with four-way stretch capabilities for unrestricted movement.
Cons: You might need to size up.