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Having a well-considered layering system is essential to a comfortable and safe experience when undertaking mountain activities in cold weather. Our range of men's base layers are a key component in achieving this.

Baselayers are just that, they're the base layer of your layering system and are designed to be worn close to the skin, trapping warm air against the body. Rab® base layers are typically constructed from a blend of merino wool or polyester fabric for optimal temperature regulation. Merino wool base layers are highly breathable, insulating, lightweight, soft (when compared to other wools) and naturally antibacterial. With options for all environments and outdoor situations, the Rab® men's base layer range features base layer tops with long sleeve and short sleeve options in a variety of weights, as well as men's base layer leggings.

Colour
Leg Length

15 Items

per page
  1. Ink

    Force SS Tee

    €39.95

    The Force SS Tee is a next-to-skin technical short sleeve tee, designed for comfort and freshness during active use.

  2. Ink

    Pulse SS Tee

    €39.95

    Lightweight and fast drying, the Pulse SS Tee is a versatile technical tee, ideal for multi-day climbing and trekking trips.

  3. Firecracker
    New Arrival

    Skyline

    Sonic LS Tee

    €69.95

    Move fast, run light and stay cool with our technical long-sleeve Sonic LS Tee - the next level in mountain running comfort.

  4. Cayenne
    New Colours

    Force LS Tee

    €44.95

    The Force LS Tee is a next-to-skin technical long sleeve tee, designed for comfort and freshness during active use.

  5. Ink
    New Colours

    Pulse Hoody

    €59.95

    Lightweight and fast drying, the Pulse Hoody is a versatile technical baselayer, ideal for multi-day climbing and trekking trips.

  6. Acid
    New Arrival

    Skyline

    Sonic SS Zip

    €59.95

    Whether used as a fast-wicking first layer or a technical standalone mountain running top, our Sonic SS Zip is the perfect tee for athletes seeking perf...ormance.

  7. Ebony

    Pulse LS Zip

    €49.95

    Lightweight and fast drying, the Pulse LS Zip is a versatile technical base layer, ideal for multi-day climbing and trekking trips.

  8. Steel

    Force Boxers

    €29.95

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

  9. Ink

    Merino Blend

    Forge Boxers

    €29.95

    The Forge Boxers are lightweight merino blend baselayer boxers designed for comfort, warmth and multi-day use.

  10. Black

    Power Stretch Pro Pants

    €89.95

    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.

  11. Beluga

    Flux Pants

    €59.95

    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.

  12. Beluga
    Great for Hillwalking

    Merino Blend

    Forge Leggings

    €49.95

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

  13. Beluga
    Great for Hillwalking

    Merino Blend

    Forge LS Tee

    €59.95

    The Forge Long Sleeve Tee is a lightweight merino blend baselayer optimised for wicking, warmth and temperature regulation.

  14. Ink

    Merino Blend

    Forge SS Tee

    €49.95

    The Forge Short Sleeve Tee is a lightweight merino blend baselayer optimised for wicking, warmth and temperature regulation.

  15. Azure
    New Arrival

    Skyline

    Sonic Tank

    €49.95

    With its low weight, ventilated comfort, dynamic cut and bright alpine colours, the Sonic Tank delivers the ultimate in mountain running freedom.