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Indera Mills


Coldpruf Base Layer


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

Set Descending Direction


11 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
  2. Youth Quest Performance Thermal Shirt

    • Single Layer Engineering • ColdPruf® Technical Fiber Polyester with SILVADUR™ Intelligent Freshness • Controls odor and inhibits bacterial growth on fabric • Wicks and aids in moisture evaporation • Brushed inside for warmth and comfort • 85% Microfiber Polyetser • 15% Spandex • Fabric Weight: 6.5 oz. • Drop Shoulder Design • Self Fabric Cuffs • Tagless, Flat Seams offer added comfort

    Regular Price: $16.99

    Special Price $12.99

  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. 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
  5. Coldpruf 100% Polypropylene Moisture Wicking Long Underwear Shirt for Youth

    • Superior moisture management • Polypro retains more heat than any other fabric • Polypro dries extremely fast • Keeps skin dry • Worn by US Navy and US Coast Guard • Tagless • Ribbed Cuffs • Flatlock seams • 100% Polypropylene
  6. Avalanche Men's Mogul Zip Neck

    • Base Layer; next to skin fabric • Provides thermal insulation • Body-hugging 4-way stretch privdes unrestricted movement • Quick absorption; keeps your skin dry • Highly breathable, allows moisture vapor to escape • Warmth without the weight or bulk • Machine washable

    Regular Price: $69.99

    Special Price $34.00

  7. Coldpruf Cotton Polyester 2 Layer Long Johns for Youth

    • 2 layer thermal fabric traps and retains body heat • Tagless • Flatlock seams • Ribbed Cuffs • 60% Cotton / 40% Polyester

    Regular Price: $27.99

    Special Price $18.99

  8. 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
  9. Coldpruf Lightweight Polyester Performance Stretch Ski Thermal Top for Men

    • High performance CPT polyester • Easy care laundering • Wicks sweat and dries quickly • Excellent body heat retention • Engineered for cold to very cold temps • 360 Degree stretch for form fitting comfort • Perfect for high endurance winter sports • Tagless • Ribbed Cuffs • Extended tail remains tucked in better • Flatlock Seams • 96% polyester, 4% Spandex

    Regular Price: $25.00

    Special Price $19.99

  10. Coldpruf Extreme Performance Long Underwear Top for Men

    • Our warmest Coldpruf long underwear (rated for extreme cold temperatures) • Comparable to UNDERARMOUR® brand • Spandex stretch engineered for high activity (360 degree stretch) • Double layer thermal fabric maximizes heat retention • Exceptional moisture wicking • Dries quickly • Retains body heat even when wet • Tagless • Ribbed Cuffs • Longer tail stays tucked in better • Flatlock Seams • 96% polyester, 4% Spanex inside and outside

    Regular Price: $41.00

    Special Price $19.99

  11. Indera Mills Antimicrobial Unisex Youth Performance Thermal Underwear Set for Youth

    • Top (shirt) and Bottom (pant) Set • Antimicrobial silver ion fabric technology prevents odor • Wicks moisture • Great for hi endurance winter activities like skiing/snowboarding/cross country • Dries quickly • Retains heat when wet • 100% HydroPur polyester rib knit
Set Descending Direction


11 Item(s)