Front view of the black Patagonia Men's Capilene Thermal Weight Baselayer Bottoms featuring Polartec Power Grid fabric with an open-grid brushed interior, a flat elastic waistband, a functional fly, a gusseted crotch, and flatlock seam construction throughout the legs and cuffs.
Front view of the black Patagonia Men's Capilene Thermal Weight Baselayer Bottoms featuring Polartec Power Grid fabric with an open-grid brushed interior, a flat elastic waistband, a functional fly, a gusseted crotch, and flatlock seam construction throughout the legs and cuffs.
Rear view of the black Patagonia Men's Capilene Thermal Weight Baselayer Bottoms featuring Polartec Power Grid fabric with an open-grid brushed interior, a flat elastic waistband, a functional fly, a gusseted crotch, and flatlock seam construction throughout the legs and cuffs.

PATAGONIA MENS CAPILENE THERMAL WEIGHT BASELAYER BOTTOMS

$129.99
By PATAGONIA
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PATAGONIA MEN’S CAPILENE THERMAL WEIGHT BASELAYER BOTTOMS

Engineered for extreme cold-weather efficiency, the Patagonia Men's Capilene Thermal Weight Baselayer Bottoms utilize Polartec Power Grid fabric featuring a smooth outer face for seamless layering and an open-grid brushed-fleece interior. The internal grid channels trap core body heat while actively wicking moisture away from the skin during high-exertion mountain activities. Treated with HeiQ Mint odor control, these technical bottoms maintain long-lasting freshness during demanding multi-day alpine expeditions.

Constructed for total freedom of movement, these baselayer pants feature a fully functional fly and a gusseted crotch designed for unhindered mobility on steep ascents. A soft, flat elastic waistband sits flush against the body to prevent irritation under shell pant waistbands or heavy pack belts. Flatlock seams throughout the full-length construction minimize fabric bulk and eliminate skin chafing under technical outerwear.

Key Features

  • Polartec Power Grid fabric with smooth exterior and open-grid fleece backing
  • HeiQ Mint odor control technology for lasting freshness
  • Functional fly construction and fully gusseted crotch
  • Soft-brushed, flat elastic waistband for low-profile comfort
  • Flatlock seam construction to eliminate chafing and reduce bulk
  • Full-length design engineered for maximum thermal coverage

Best For

  • Low-bulk thermal baselayering under ski and alpine shell pants
  • Cold-weather backcountry skiing, mountaineering, and ice climbing
  • High-output winter activities requiring rapid moisture evacuation
  • Multi-day cold-weather wilderness expeditions
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