We’re still shipping as normal! More Info
In light of the ongoing COVID-19 situation, we have extended our returns window to 90 days Details Returns period extended to 90 days. Details

Our years of expedition experience means that we appreciate the role of base layer pants or thermal leggings during those cold-weather hikes. This additional layer under your hiking pants gives you an added layer of warmth and insulation to help prevent feeling cold.

Rab® men's base layer pants are developed in a range of styles using materials such as Polartec and Merino Wool to ensure that there will be something to suit every need. A pair of quick-drying, stretchy, insulating long johns along with a suitable base layer shirts is a must for any cold-weather layering system.

Related: All Base Layers

Color
Leg Length

5 Items

per page
  1. Black

    Power Stretch Pro Pants

    $100.00

    The Power Stretch Pro Pants are light-weight fleeced pants, in a Polartec® Power Stretch Pro® fabric, designed for use as a base or mid-layer.

  2. Beluga

    Flux Pants

    $55.00

    The Flux Pant is a mid-weight baselayer pant, with a brushed back providing quick drying warmth, designed for use as a cold weather baselayer.

  3. Beluga
    Great for Hillwalking

    Merino Blend

    Forge Leggings

    $50.00

    The ideal foundation for any layering system, the Forge Leggings are lightweight merino blend baselayer leggings optimised for wicking, warmth and tempe...rature regulation.

  4. Steel

    Force Boxers

    $35.00

    The Force Boxers are lightweight baselayer boxer shorts optimised for comfort and odour control.

  5. Black

    Power Stretch Pro Bib

    $170.00

    The Power Stretch Pro Bib is a light-weight fleeced bib, in a Polartec® Power Stretch Pro® fabric, designed for layering use in cold conditions.