Men's Thermal Base Layer Long Johns with Fly

$40.00 USD

10 in stock
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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 8 reviews
      Ed Lewis
      Fit: True To Size
      Conditions: Skin allergies.
      What is the most beneficial property of Cottonique for you?: Comfortable, Allergy-Free, Chemical-Free
      What made you choose Cottonique?: Sensitive Skin, Others
      Very comfy

      These are the right thickness for a cold Iowa winter. Not too thin and not too hot.





      Alexander Templeton
      Fit: Too Small
      Conditions: Latex allergy
      What is the most beneficial property of Cottonique for you?: Allergy-Free, Latex-Free and Spandex-Free, Natural Organic Cotton, Formaldehyde-Free
      What made you choose Cottonique?: Latex-Allergy
      Latex allergic

      Don’t buy these if your latex allergy is severe, the elastic causes reactions

      Fit: True To Size
      Conditions: Comfort
      What is the most beneficial property of Cottonique for you?: Comfortable
      What made you choose Cottonique?: Comfortable

      Retired - wear them every day around home.

      Will Sun
      So warm

      Excellent!! Warm for winter and size S is a perfect fit as a 5’6” man. I use for training at the gym, as the gyms are now outdoors due to covid.

      Oscar Gils Carbo
      Fit: True To Size
      Conditions: It does not help because it is unusable for me.
      What is the most beneficial property of Cottonique for you?: Natural Organic Cotton
      What made you choose Cottonique?: Comfortable
      Elastic waist is far too strong and tight.

      It's impossible for me to use it with the kind of tight elastic waist this thermal has. I was expecting something like your beautiful lounge pants with no elastic at the wait, and a cord instead.

      Stephen Rose
      Sleeves Unbelievably Short

      I have never ordered a large top of any kind that had sleeves this short. I am 5'11" and always wear large tops. The sleeves were 3" too short!! I gave product to my 5'1" wife. Absolutely terrible sizing.