Men's Thermal Base Layer Long Johns with Fly

$40.00 USD

Warmest base-layer bottom with allergy-free comfort 

With its warmth, comfort, and extra insulation, this base layer bottom surely deserves a space in your wardrobe. Made with 100% chemical-free GOTS-certified organic cotton fabric, this thermal base layer long john with fly serves as a second skin that protects men from cold and irritation. It's not too tight and not too loose, so you can always be comfortable and itch-free wherever you go.


  • Tapered leg for a relaxed fit
  • Honeycomb texture
  • Functional vertical button-fly for easy access 
  • Banded cuffs without spandex to keep it in place without triggering your allergies.
  • Flat stitched seams for comfort
  • Unbeatable soft, breathable fabric
  • Irritation-free label for sensitive skin 
  • Without latex and spandex
  • Free from chemicals and synthetics

What Should I Wear For An MRI?
Choosing the Right Winter Clothing for Sensitive Skin

      Size & Fit
      • Fitted
      • Size M Inseam: 30" | Outseam: 42"
      • Model is 6'2" with a 30-inch waist and is wearing a Size M

      Note: The latex and spandex-free elastic that we utilize in some of our products contains a synthetic material that’s very different from polyester. We then wrapped the said elastic using our 100% organic cotton.

      Product Care

      For a continuous uncompromised allergy-free experience, we recommend washing your thermal pajamas at less than 30°C with a mild detergent. Gentle cycle. Tumble dry with low temperature

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      Customer Reviews

      Based on 11 reviews
      Gary Boucherle
      I love my organic long johns

      My skin loves the organic cotton of these long johns. They are a good fit and don’t shrink. 5 star

      Soft and warm

      The pants are soft, keep you warm and are a great value

      Elizabeth Hallett

      Men's Thermal Pajama

      Kenneth Nordberg
      Ahhh…relief from itchy wrists. ankles, neck and waist at last!

      Love ‘em

      Serge Gregorian
      Warm and comfy

      I am very pleased with this product.

      Brandon Bennett
      Longjohns love them comfortable

      Wish they had black ones

      Elham Maroufyan
      Very satisfy

      I am very satisfy with all products of thus company
      very comfortable
      in a good shape and style
      after washing still in good shape
      good customer support
      I bought a lot of products from here and highly recommended

      Bonnie Jacobsen
      Warm again

      Pacific Northwest! We freeze most of the year.
      I am warm and comfortable sleeping in these.
      Love the warmth ❤️🙏🏻

      Alessandra Adderley
      Men's Thermal Pajama

      Purchased the bottom/pants only for my 80 year old father who says it fits well, is warm and comfortable. Thank you.

      joseph satlak
      great product

      Great product