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Thermal Underwear, Long underwear, or Long Johns

Maybe you're an avid extreme winter mountain trekker or you simply get the chills while working in the cool office, you operate heavy mining equipment year round or you work for the US Coast Guard. Either way, thermal long underwear, also known as base layer or long johns, may be just what you need to stay warm and comfortable. The type you choose will depend on your activity level, your budget, and the temperature.

Men's Thermal Underwear Women's Thermal Underwear Kid's Thermal Underwear

Thermal Underwear

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12 Item(s)

  1. Coldpruf Performance Merino Wool Blend Ski Thermal Top for Men

    • Hi Performance Wicking Thermals • Midweight Thermal Fabric • Wicks sweat and dries fast • Keeps your skin dry • Tagless • Ribbed Cuffs • Longer tail stays tucked in better • Flatlock Seams • 100% Polyester Inside / 70% Polyester,30% Merino Wool Outside
    $24.99
  2. Coldpruf Performance Merino Wool Blend Ski Thermal Bottom for Men

    • Hi Performance Wicking Thermals • Midweight Thermal Fabric • Wicks sweat and dries fast • Keeps your skin dry • Tagless • Ribbed Cuffs • Longer tail stays tucked in better • Flatlock Seams • 100% Polyester Inside / 70% Polyester,30% Merino Wool Outside
  3. Coldpruf Single Layer 100% Polypropylene Long Underwear Top for Men

    • Polypro retains more heat than any other fabric • Polypro dries extremely fast • Flatlock Seams • Tagless • Ribbed Cuffs • Extended tail stays tucked in • 100% Polypropylene

    Regular Price: $17.99

    Special Price $15.99

  4. Coldpruf Single Layer 100% Polypropylene Long Underwear Pant for Men

    • Polypro retains more heat than any other fabric • Polypro dries extremely fast • Flatlock Seams • Tagless • Ribbed Cuffs • Extended tail stays tucked in • 100% Polypropylene

    Regular Price: $17.99

    Special Price $15.99

  5. Indera Mills Lightweight Ribbed Knit 100% Cotton Thermal Shirt For Men for Men

    • Preshrunk • Ribbed Knit(like a regular cotton T) • Bright white color • Rated for mild cold • 5.5oz 100% cotton
    $12.99
  6. Coldpruf Cotton Poly Thermal Underwear Bottom for Women

    • Super Soft Cotton Poly Thermal Blend • 2 Layer Fabric Traps Body Heat and Retains it • Hemmed Cuffs • Perfect for light winter activity in moderate cold • 60% Combed Cotton/40% Polyester • Flatlock Seams • Tagless

    Regular Price: $15.00

    Special Price $10.99

  7. Coldpruf Merino Wool Blend Long Johns Top for Women

    • Luxuriously warm thermal knit fabric • Hemmed cuffs • Flatlock Seams • Tagless • 100% Cotton Inside/65% Cotton,25%Merino Wool,10% Nylon Outside
    $26.99
  8. Coldpruf Cotton Poly Thermal Underwear Bottom for Men

    • 2 layer thermal fabric traps body heat • Rated for cold to very cold temps • Tagless • Extended tail stays tucked in • Flatlock seams for comfort • 60% Cotton / 40% Polyester • Big Sizes

    Regular Price: $15.00

    Special Price $10.99

  9. Coldpruf Merino Wool Performance Thermal Underwear Top for Women

    • Double layer performance thermal fabric • Extended shirt tail stays tucked in better • Superior moisture control • Easy care laundering • Dries fast • Traps and retains body heat even when wet • Keeps skin dry • Tagless • Flatlock seams 100% polyester outside/70% polyester,30% merino wool inside
    $25.99
  10. Coldpruf Merino Wool Performance Thermal Underwear Pant for Women

    • Double layer performance thermal fabric • Superior moisture control • Easy care laundering • Dries fast • Traps and retains body heat even when wet • Keeps skin dry • Tagless • Flatlock seams 100% polyester outside/70% polyester,30% merino wool inside
    $25.99
  11. Indera Mills Lightweight Cotton Polyester Blend Waffle Knit Thermal Underwear Bottom for Men

    • Waffle Knit • Traps body heat and retains it • Ribbed Cuffs • Polyester blend dries quicker than 100% cotton • 65% cotton/35% polyester
  12. Indera Mills Lightweight Cotton Polyester Blend Waffle Knit Thermal Underwear Top for Men

    • Waffle Knit • Traps body heat and retains it • Ribbed Cuffs • Polyester blend dries quicker than 100% cotton • 65% cotton/35% polyester
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12 Item(s)