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    Best Seller
    MERIWOOL Men’s Merino Wool Heavyweight Baselayer Bottom - Choose Your Size

    MERIWOOL Men’s Merino Wool Heavyweight Baselayer Bottom - Choose Your Size

    Package Includes: 1 - Men’s 400g/m² merino wool thermal leggings SUPER SOFT: 100% all natural superfine 18.5-micron Merino wool ensures comfort all day long – no itch! EASY CARE: Your thermal pants are machine-washable on cold setting and safe to... more

    $149.91 $89.99

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    MERIWOOL Men’s Merino Wool Heavyweight Baselayer Bottom - Choose Your Size

    MERIWOOL Men’s Merino Wool Heavyweight Baselayer Bottom - Choose Your Size

    Package Includes: 1 - Men’s 400g/m² merino wool thermal leggings SUPER SOFT: 100% all natural superfine 18.5-micron Merino wool ensures comfort all day long – no itch! EASY CARE: Your thermal pants are machine-washable on cold setting and safe to... more

    $89.99

    FREE shipping

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    Best Seller
    MERIWOOL Mens Base Layer - 100% Merino Wool Midweight Long Sleeve Thermal Shirt

    MERIWOOL Mens Base Layer - 100% Merino Wool Midweight Long Sleeve Thermal Shirt

    SUPER SOFT: 100% all natural superfine 18.5-micron Merino wool ensures comfort all day – no itch! EASY CARE: Mid-weight long sleeve crew top shirt is machine-washable and dryer-safe so it’s ready when you are for your next adventure. MEN’S SIZE... more

    $59.99

    FREE shipping

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    Fjallraven Bergtagen Thinwool Long Johns - Men's Black 2XL F87406-550-XXL

    Fjallraven Bergtagen Thinwool Long Johns - Men's Black 2XL F87406-550-XXL

    Fjallraven Bergtagen Thinwool Long Johns - Men's Black 2XL F87406-550-XXL. Made from a fine merino jersey knit it is lightweight pliant and comfortable to wear against the skin. The natural fibres help regulate body temperature which is useful when... more

    $100.00

    FREE shipping

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    Fjallraven Bergtagen Thinwool Long Johns - Men's Black Large F87406-550-L

    Fjallraven Bergtagen Thinwool Long Johns - Men's Black Large F87406-550-L

    Fjallraven Bergtagen Thinwool Long Johns - Men's Black Large F87406-550-L. Made from a fine merino jersey knit it is lightweight pliant and comfortable to wear against the skin. The natural fibres help regulate body temperature which is useful when... more

    $100.00

    FREE shipping

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    Fjallraven Bergtagen Thinwool Long Johns - Men's Black Medium F87406-550-M

    Fjallraven Bergtagen Thinwool Long Johns - Men's Black Medium F87406-550-M

    Fjallraven Bergtagen Thinwool Long Johns - Men's Black Medium F87406-550-M. Made from a fine merino jersey knit it is lightweight pliant and comfortable to wear against the skin. The natural fibres help regulate body temperature which is useful when... more

    $100.00

    FREE shipping

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    Smartwool Intraknit Thermal Long Sleeve Merino Wool Base Layer Shirt, Black-White SKU - 135667

    Smartwool Intraknit Thermal Long Sleeve Merino Wool Base Layer Shirt, Black-White SKU - 135667

    This minimalist-style crew is anything but insignificant. The Smartwool Men's Intraknit Thermal Merino Base Layer Crew is a lightweight, super-moveable top, made for all of your most extreme cold-weather activities. With Merino Sport yarns and... more

    $130.00

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    Smartwool Intraknit Thermal Long Sleeve Merino Wool Base Layer Shirt, Black-White SKU - 541106

    Smartwool Intraknit Thermal Long Sleeve Merino Wool Base Layer Shirt, Black-White SKU - 541106

    This minimalist-style crew is anything but insignificant. The Smartwool Men's Intraknit Thermal Merino Base Layer Crew is a lightweight, super-moveable top, made for all of your most extreme cold-weather activities. With Merino Sport yarns and... more

    $130.00

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    Smartwool Intraknit Thermal Long Sleeve Merino Wool Base Layer Shirt, Black-White SKU - 698222

    Smartwool Intraknit Thermal Long Sleeve Merino Wool Base Layer Shirt, Black-White SKU - 698222

    This minimalist-style crew is anything but insignificant. The Smartwool Men's Intraknit Thermal Merino Base Layer Crew is a lightweight, super-moveable top, made for all of your most extreme cold-weather activities. With Merino Sport yarns and... more

    $130.00

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    Smartwool Intraknit Active Base Layer Bottom - Mens Charcoal Heather/Black 2XL SW0168290111-XXL

    Smartwool Intraknit Active Base Layer Bottom - Mens Charcoal Heather/Black 2XL SW0168290111-XXL

    Smartwool Intraknit Active Base Layer Bottom - Mens Charcoal Heather/Black 2XL SW0168290111-XXL. Smartwool Men's Intraknit Thermal Merino Base Layer Bottom puts warmth first while seamlessly knit mesh ventilation helps keep you dry and comfortable. Our... more

    $130.00

    FREE shipping

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    Smartwool Intraknit Active Base Layer Bottom - Mens Charcoal Heather/Black Extra Large SW0168290111-XL

    Smartwool Intraknit Active Base Layer Bottom - Mens Charcoal Heather/Black Extra Large SW0168290111-XL

    Smartwool Intraknit Active Base Layer Bottom - Mens Charcoal Heather/Black Extra Large SW0168290111-XL. Smartwool Men's Intraknit Thermal Merino Base Layer Bottom puts warmth first while seamlessly knit mesh ventilation helps keep you dry and... more

    $130.00

    FREE shipping

    go to store
    MERIWOOL Men’s Merino Wool Heavyweight Baselayer Bottom - Choose Your Size

    MERIWOOL Men’s Merino Wool Heavyweight Baselayer Bottom - Choose Your Size

    Package Includes: 1 - Men’s 400g/m² merino wool thermal leggings SUPER SOFT: 100% all natural superfine 18.5-micron Merino wool ensures comfort all day long – no itch! EASY CARE: Your thermal pants are machine-washable on cold setting and safe to... more

    $89.99

    FREE shipping

    go to store
    MERIWOOL Men s Merino Wool Midweight Baselayer Bottom - Army Green - XL

    MERIWOOL Men s Merino Wool Midweight Baselayer Bottom - Army Green - XL

    SUPER SOFT: 100% all natural superfine 18.5-micron Merino wool ensures comfort all day long – no itch! EASY CARE: Your thermal pants are machine-washable on cold setting and safe to tumble dry on low heat with like colors so it’s ready when you are... more

    $59.99

    FREE shipping

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    MERIWOOL Mens Base Layer - 100% Merino Wool Midweight Long Sleeve Thermal Shirt

    MERIWOOL Mens Base Layer - 100% Merino Wool Midweight Long Sleeve Thermal Shirt

    SUPER SOFT: 100% all natural superfine 18.5-micron Merino wool ensures comfort all day – no itch! EASY CARE: Mid-weight long sleeve crew top shirt is machine-washable and dryer-safe so it’s ready when you are for your next adventure. MEN’S SIZE... more

    $59.99

    FREE shipping

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    Fjallraven Bergtagen Thinwool Long Johns - Men's Black Extra Small F87406-550-XS

    Fjallraven Bergtagen Thinwool Long Johns - Men's Black Extra Small F87406-550-XS

    Fjallraven Bergtagen Thinwool Long Johns - Men's Black Extra Small F87406-550-XS. Made from a fine merino jersey knit it is lightweight pliant and comfortable to wear against the skin. The natural fibres help regulate body temperature which is useful... more

    $100.00

    FREE shipping

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    Fjallraven Bergtagen Thinwool Long Johns - Men's Black Small F87406-550-S

    Fjallraven Bergtagen Thinwool Long Johns - Men's Black Small F87406-550-S

    Fjallraven Bergtagen Thinwool Long Johns - Men's Black Small F87406-550-S. Made from a fine merino jersey knit it is lightweight pliant and comfortable to wear against the skin. The natural fibres help regulate body temperature which is useful when... more

    $100.00

    FREE shipping

    go to store
    Smartwool Intraknit Thermal Long Sleeve Merino Wool Base Layer Shirt, Black-White SKU - 953900

    Smartwool Intraknit Thermal Long Sleeve Merino Wool Base Layer Shirt, Black-White SKU - 953900

    This minimalist-style crew is anything but insignificant. The Smartwool Men's Intraknit Thermal Merino Base Layer Crew is a lightweight, super-moveable top, made for all of your most extreme cold-weather activities. With Merino Sport yarns and... more

    $130.00

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    Smartwool Intraknit Thermal Long Sleeve Quarter Zip Merino Wool Base Layer Shirt, Black-White SKU - 115138

    Smartwool Intraknit Thermal Long Sleeve Quarter Zip Merino Wool Base Layer Shirt, Black-White SKU - 115138

    Meet the Smartwool Men's Intraknit Thermal Merino Base Layer 1/4 Zip Shirt. This bulk-free, 100% Merino wool thermal layer brings a new dimension to active winter wear. With seamlessly integrated insulation and ventilation, perfectly articulated flex... more

    $140.00

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    Smartwool Intraknit Thermal Long Sleeve Merino Wool Base Layer Shirt, Winter Moss SKU - 244558

    Smartwool Intraknit Thermal Long Sleeve Merino Wool Base Layer Shirt, Winter Moss SKU - 244558

    This minimalist-style crew is anything but insignificant. The Smartwool Men's Intraknit Thermal Merino Base Layer Crew is a lightweight, super-moveable top, made for all of your most extreme cold-weather activities. With Merino Sport yarns and... more

    $125.00

    go to store
    Smartwool Intraknit Thermal Long Sleeve Quarter Zip Merino Wool Base Layer Shirt, Black-White SKU - 286788

    Smartwool Intraknit Thermal Long Sleeve Quarter Zip Merino Wool Base Layer Shirt, Black-White SKU - 286788

    Meet the Smartwool Men's Intraknit Thermal Merino Base Layer 1/4 Zip Shirt. This bulk-free, 100% Merino wool thermal layer brings a new dimension to active winter wear. With seamlessly integrated insulation and ventilation, perfectly articulated flex... more

    $140.00

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    Smartwool Intraknit Thermal Long Sleeve Merino Wool Base Layer Shirt, Winter Moss SKU - 488082

    Smartwool Intraknit Thermal Long Sleeve Merino Wool Base Layer Shirt, Winter Moss SKU - 488082

    This minimalist-style crew is anything but insignificant. The Smartwool Men's Intraknit Thermal Merino Base Layer Crew is a lightweight, super-moveable top, made for all of your most extreme cold-weather activities. With Merino Sport yarns and... more

    $125.00

    go to store
    Smartwool Intraknit Thermal Long Sleeve Merino Wool Base Layer Shirt, Winter Moss SKU - 605110

    Smartwool Intraknit Thermal Long Sleeve Merino Wool Base Layer Shirt, Winter Moss SKU - 605110

    This minimalist-style crew is anything but insignificant. The Smartwool Men's Intraknit Thermal Merino Base Layer Crew is a lightweight, super-moveable top, made for all of your most extreme cold-weather activities. With Merino Sport yarns and... more

    $125.00

    go to store
    Smartwool Intraknit Thermal Long Sleeve Quarter Zip Merino Wool Base Layer Shirt, Black-White SKU - 915659

    Smartwool Intraknit Thermal Long Sleeve Quarter Zip Merino Wool Base Layer Shirt, Black-White SKU - 915659

    Meet the Smartwool Men's Intraknit Thermal Merino Base Layer 1/4 Zip Shirt. This bulk-free, 100% Merino wool thermal layer brings a new dimension to active winter wear. With seamlessly integrated insulation and ventilation, perfectly articulated flex... more

    $140.00

    go to store
    Smartwool Intraknit Thermal Long Sleeve Quarter Zip Merino Wool Base Layer Shirt, Black-White SKU - 984081

    Smartwool Intraknit Thermal Long Sleeve Quarter Zip Merino Wool Base Layer Shirt, Black-White SKU - 984081

    Meet the Smartwool Men's Intraknit Thermal Merino Base Layer 1/4 Zip Shirt. This bulk-free, 100% Merino wool thermal layer brings a new dimension to active winter wear. With seamlessly integrated insulation and ventilation, perfectly articulated flex... more

    $140.00

    go to store
    Smartwool Classic Thermal Long Sleeve Quarter Zip Merino Wool Base Layer Shirt, Deep Navy SKU - 129119

    Smartwool Classic Thermal Long Sleeve Quarter Zip Merino Wool Base Layer Shirt, Deep Navy SKU - 129119

    Smartwool updated the fit of their Classic Thermal Merino Base Layer 1/4 Zip Shirt to improve functionality while enhancing aesthetics. As one of their heaviest base layer fabrics this garment delivers 100% responsibly sourced merino wool, shoulder... more

    $120.00

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    Smartwool Classic Thermal Long Sleeve Quarter Zip Merino Wool Base Layer Shirt, Deep Navy SKU - 277110

    Smartwool Classic Thermal Long Sleeve Quarter Zip Merino Wool Base Layer Shirt, Deep Navy SKU - 277110

    Smartwool updated the fit of their Classic Thermal Merino Base Layer 1/4 Zip Shirt to improve functionality while enhancing aesthetics. As one of their heaviest base layer fabrics this garment delivers 100% responsibly sourced merino wool, shoulder... more

    $120.00

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    Smartwool Classic Thermal Long Sleeve Quarter Zip Merino Wool Base Layer Shirt, Charcoal Heather SKU - 103465

    Smartwool Classic Thermal Long Sleeve Quarter Zip Merino Wool Base Layer Shirt, Charcoal Heather SKU - 103465

    Smartwool updated the fit of their Classic Thermal Merino Base Layer 1/4 Zip Shirt to improve functionality while enhancing aesthetics. As one of their heaviest base layer fabrics this garment delivers 100% responsibly sourced merino wool, shoulder... more

    $120.00

    go to store
    Smartwool Classic Thermal Long Sleeve Quarter Zip Merino Wool Base Layer Shirt, Charcoal Heather SKU - 471786

    Smartwool Classic Thermal Long Sleeve Quarter Zip Merino Wool Base Layer Shirt, Charcoal Heather SKU - 471786

    Smartwool updated the fit of their Classic Thermal Merino Base Layer 1/4 Zip Shirt to improve functionality while enhancing aesthetics. As one of their heaviest base layer fabrics this garment delivers 100% responsibly sourced merino wool, shoulder... more

    $120.00

    go to store
    Smartwool Classic Thermal Long Sleeve Quarter Zip Merino Wool Base Layer Shirt, Charcoal Heather SKU - 586393

    Smartwool Classic Thermal Long Sleeve Quarter Zip Merino Wool Base Layer Shirt, Charcoal Heather SKU - 586393

    Smartwool updated the fit of their Classic Thermal Merino Base Layer 1/4 Zip Shirt to improve functionality while enhancing aesthetics. As one of their heaviest base layer fabrics this garment delivers 100% responsibly sourced merino wool, shoulder... more

    $120.00

    go to store
    Smartwool Classic Thermal Long Sleeve Quarter Zip Merino Wool Base Layer Shirt, Charcoal Heather SKU - 200365

    Smartwool Classic Thermal Long Sleeve Quarter Zip Merino Wool Base Layer Shirt, Charcoal Heather SKU - 200365

    Smartwool updated the fit of their Classic Thermal Merino Base Layer 1/4 Zip Shirt to improve functionality while enhancing aesthetics. As one of their heaviest base layer fabrics this garment delivers 100% responsibly sourced merino wool, shoulder... more

    $120.00

    go to store
    Smartwool Classic Thermal Long Sleeve Quarter Zip Merino Wool Base Layer Shirt, Deep Navy SKU - 379987

    Smartwool Classic Thermal Long Sleeve Quarter Zip Merino Wool Base Layer Shirt, Deep Navy SKU - 379987

    Smartwool updated the fit of their Classic Thermal Merino Base Layer 1/4 Zip Shirt to improve functionality while enhancing aesthetics. As one of their heaviest base layer fabrics this garment delivers 100% responsibly sourced merino wool, shoulder... more

    $120.00

    go to store
    Smartwool Classic Thermal Long Sleeve Quarter Zip Merino Wool Base Layer Shirt, Deep Navy SKU - 511025

    Smartwool Classic Thermal Long Sleeve Quarter Zip Merino Wool Base Layer Shirt, Deep Navy SKU - 511025

    Smartwool updated the fit of their Classic Thermal Merino Base Layer 1/4 Zip Shirt to improve functionality while enhancing aesthetics. As one of their heaviest base layer fabrics this garment delivers 100% responsibly sourced merino wool, shoulder... more

    $120.00

    go to store
    Smartwool Intraknit Thermal Long Sleeve Merino Wool Base Layer Shirt, Winter Moss SKU - 365163

    Smartwool Intraknit Thermal Long Sleeve Merino Wool Base Layer Shirt, Winter Moss SKU - 365163

    This minimalist-style crew is anything but insignificant. The Smartwool Men's Intraknit Thermal Merino Base Layer Crew is a lightweight, super-moveable top, made for all of your most extreme cold-weather activities. With Merino Sport yarns and... more

    $125.00

    go to store
    Fjallraven Bergtagen Thinwool Long Johns - Men's Black Extra Large F87406-550-XL

    Fjallraven Bergtagen Thinwool Long Johns - Men's Black Extra Large F87406-550-XL

    Fjallraven Bergtagen Thinwool Long Johns - Men's Black Extra Large F87406-550-XL. Made from a fine merino jersey knit it is lightweight pliant and comfortable to wear against the skin. The natural fibres help regulate body temperature which is useful... more

    $100.00

    FREE shipping

    go to store
    Smartwool Intraknit Active Base Layer Bottom - Mens Charcoal Heather/Black 2XL SW0168290111-XXL

    Smartwool Intraknit Active Base Layer Bottom - Mens Charcoal Heather/Black 2XL SW0168290111-XXL

    Smartwool Intraknit Active Base Layer Bottom - Mens Charcoal Heather/Black 2XL SW0168290111-XXL. Smartwool Men's Intraknit Thermal Merino Base Layer Bottom puts warmth first while seamlessly knit mesh ventilation helps keep you dry and comfortable. Our... more

    $130.00

    FREE shipping

    go to store
    Smartwool Intraknit Active Base Layer Bottom - Mens Charcoal Heather/Black Extra Large SW0168290111-XL

    Smartwool Intraknit Active Base Layer Bottom - Mens Charcoal Heather/Black Extra Large SW0168290111-XL

    Smartwool Intraknit Active Base Layer Bottom - Mens Charcoal Heather/Black Extra Large SW0168290111-XL. Smartwool Men's Intraknit Thermal Merino Base Layer Bottom puts warmth first while seamlessly knit mesh ventilation helps keep you dry and... more

    $130.00

    FREE shipping

    go to store

    More information about Men's Underwear

    Best prices on Wool, Sports, Thermals in Men's Underwear online. Visit Bizrate to find the best deals on top brands. Read reviews on Clothing & Accessories merchants and buy with confidence.