Good base layer bottoms should be warm but not bulky, fit snugly and wick away moisture. The most common materials for base layers include merino wool, silk and synthetics like polyester, nylon and rayon. Many base layer fabrics are also blended with spandex for comfortable stretch. Merino wool is super breathable and moderately tough, but it takes longer to dry than synthetics if it gets wet. It will, however, keep you cool since it’s naturally temperature-regulating. Both merino wool and synthetic materials offer good odor-resistance. A silky base layer isn’t very breathable, however, it is exceptionally soft and slips comfortably under layers. Considering all this, shop the best base layers for men you can buy in a range of styles.
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1. 32 Degrees Base Layer Leggings
This lighter weight style features a blend of quick-drying polyester, acrylic for added warmth and stretchy spandex.
Pros: Four-way stretch allows for full freedom of movement and enhanced comfort. They come in four colors and six sizes.
Cons: These mat fit on the small side.
2. Minus33 Franconia Midweight Bottoms
These midweight bottoms are constructed with 100% merino wool and flatlock seams for ultimate comfort.
Pros: Stretchy rib-knit cuffs trap in heat. These are offered in sizes XS to XXXL. They come in six colors including hot pink.
Cons: They may run a bit large.
3. Icebreaker 260 Tech Base Layer Leggings
This heavier pair is also made with 100% merino wool jersey fabric, making them incredibly warm and highly breathable.
Pros: These also feature flatlock seams to prevent chafing and a gusset construction for enhanced mobility and comfort.
Cons: They’re only available in black.
4. Terramar Thermasilk Pointelle Pants
These pants are crafted from filament silk, meaning they’re extremely soft and ultra-lightweight with natural breathability.
Pros: They’re made with ClimaSense technology to help control your body temperature. They’re offered in a few colors.
Cons: They’re somewhat transparent.
5. Kari Traa Rett Base Layer Bottoms
This printed style combines technical DriRelease fabric and outstandingly soft merino wool to keep you warm but sweat-free.
Pros: Strategically placed panels add extra warmth and protection to areas that often get cold easily, like your knees and IT bands.
Cons: The fabric may pill with multiple washes.
6. Carhartt Base Force Midweight Tech Bottom
These thermal bottoms are made of midweight waffle knit polyester with Force FastDry technology to wick away sweat.
Pros: Rugged Flex technology promotes ease of movement. Smooth flatlock seams and a tagless label boosts comfort.
Cons: Some may find they seem slightly thin.