Base Layers

Providing warmth with excellent next-to-skin comfort. Whether ultrasoft merino wool for mixed weather, vintage-inspired waffle-knit cottons for dry conditions, or snug-fitting socks for long days on the trail, our layers are built to perform.
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41 products

  • Front-facing image of the Filson 400g Merino Wool Hoodie - Dark Olive
    Alternate view of the Filson 400g Merino Wool Hoodie - Dark Olive
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    400g Merino Wool Hoodie

    Heavyweight full-zip for frigid conditions.

    $225
  • Front-facing image of the Filson 400g Merino Wool Hoodie - Black
    Alternate view of the Filson 400g Merino Wool Hoodie - Black
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    400g Merino Wool Hoodie

    Heavyweight full-zip for frigid conditions.

    $225
  • Front-facing image of the Filson 400g Merino Wool Bottoms - Dark Olive
    Alternate view of the Filson 400g Merino Wool Bottoms - Dark Olive
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    400g Merino Wool Bottoms

    Expedition-weight merino wool for frigid conditions.

    $155
  • Alternate view of the Filson 400g Merino Wool Bottoms - Black
    Alternate view of the Filson 400g Merino Wool Bottoms - Black
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    400g Merino Wool Bottoms

    Expedition-weight merino wool for frigid conditions.

    $155
  • Front-facing image of the Filson Waffle Knit Henley - Light Heather Gray
    Alternate view of the Filson Waffle Knit Henley - Light Heather Gray
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    Waffle Knit Henley

    Made with premium long-staple cotton.

    $115
  • Front-facing image of the Filson Waffle Knit Henley - Sand
    Alternate view of the Filson Waffle Knit Henley - Sand
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    Waffle Knit Henley

    Made with premium long-staple cotton.

    $115
  • Front-facing image of the Filson Waffle Knit Henley - Mossy Rock
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    Waffle Knit Henley

    Made with premium long-staple cotton.

    $115
  • Front-facing image of the Filson Waffle Knit Henley - Faded Black
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    Waffle Knit Henley

    Made with premium long-staple cotton.

    $115
  • Front-facing image of the Filson 280g Merino Wool Crewneck - Red Oak
    Alternate view of the Filson 280g Merino Wool Crewneck - Red Oak
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    280g Merino Wool Crewneck

    Midweight base layer for cold weather activities.

    $75 $150
  • Front-facing image of the Filson 280g Merino Wool Crewneck - Rugged Tan
    Alternate view of the Filson 280g Merino Wool Crewneck - Rugged Tan
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    280g Merino Wool Crewneck

    Midweight base layer for cold weather activities.

    $75 $150
  • Front-facing image of the Filson Waffle Knit Henley - Rust
    Alternate view of the Filson Waffle Knit Henley - Rust
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    Waffle Knit Henley

    Made with premium long-staple cotton.

    $69 $115
  • Front-facing image of the Filson 400g Merino Wool Bottoms - Red Oak
    Alternate view of the Filson 400g Merino Wool Bottoms - Red Oak
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    280g Merino Wool Bottoms

    Midweight next-to-skin layer for stop-and go activities.

    $67.50 $135
  • Front-facing image of the Filson 280g Merino Wool Bottoms - Rugged Tan
    Alternate view of the Filson 280g Merino Wool Bottoms - Rugged Tan
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    280g Merino Wool Bottoms

    Midweight next-to-skin layer for stop-and go activities.

    $67.50 $135
  • Front-facing image of the Filson Waffle Knit Thermal Crewneck - Realtree Hardwoods Camo
    Alternate view of the Filson Waffle Knit Thermal Crewneck - Realtree Hardwoods Camo
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    Waffle Knit Thermal Crewneck

    Made with premium long-staple cotton.

    $57.50 $115
  • Front-facing image of the Filson Waffle Knit Thermal Crewneck - Flame
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    Waffle Knit Thermal Crewneck

    Made with premium long-staple cotton.

    $47.50 $95
  • Front-facing image of the Filson X Country Outdoorsman Socks - Green Blaze
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    X Country Outdoorsman Socks

    A moisture-wicking merino wool blend keeps your feet dry and comfortable.

    $35
  • Front-facing image of the Filson X Country Outdoorsman Socks - Black Brown
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    X Country Outdoorsman Socks

    A moisture-wicking merino wool blend keeps your feet dry and comfortable.

    $35
  • Front-facing image of the Filson Midweight Traditional Crew Socks - Gray Heather
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    Midweight Traditional Crew Socks

    Our Midweight Traditional Crew Socks use merino wool with a touch of nylon and spandex.

    $35
  • Front-facing image of the Filson Everyday Crew Socks - Red
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    Everyday Crew Socks

    Versatile, midweight socks made of a merino wool blend.

    $30