Thermal Bottom

(7 reviews)    | Write a Review
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173.10 XLR
173.10 XLR

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Experience unparalleled comfort and warmth with our Men's Thermal Underwear Bottoms. These men’s thermal bottoms are expertly crafted to provide the best base layer for long hours outdoors, ensuring you stay warm and comfortable. Made from a high-density yarn of super-soft 50% cotton and 50% polyester, these men's long underwear pants are designed to keep the warm air in and the cold air out.

Featuring a snug cuff and an elastic waistband, these thermal pants guarantee a secure fit without any annoying movement throughout your day. Ideal for pairing with our Men's Thermal Underwear Shirt, they offer complete protection against the cold. These men's thermal pants are an essential addition to your cold-weather gear, providing the perfect blend of warmth, comfort, and practicality for any outdoor activity.

  • 50% Cotton / 50% Polyester, 9 oz Fabric
  • Ankle Length with Cuff
  • Elastic Waistband
  • Poly Bag Packaging

7 Reviews
  • 3
    Thermal bottom

    Posted by John Sale on Nov 6th 2023

    The thermal bottoms did not fit well, rode very low on my waist. The bottoms gave me extreme plumbers butt. Very well made,nice fabric. But odd fitting.

  • 1
    Thermo bottom

    Posted by Up North on Jan 24th 2022

    This 2X size is more of a Medium. Every thing else was +- perfect. Experience many years ago, size was right. Recommend ordering two sizes up.

  • 3
    Polar king thermal bottom

    Posted by Jason on Dec 22nd 2021

    The medium regular was way too small. I was expecting a snug fit but couldn't get my feet through the legs . order at least one more size up. They look warm and good quality though.

  • 2
    Sizing was WAY off. TOO small

    Posted by Gretchen C Tipton on Nov 18th 2021

    We had purchased thermal bottoms from Key in the past and loved them. However, these are Polar King and are totally different. They do not fit at all. Too small and too short.

  • 1

    Posted by Tim Gering on Nov 30th 2020

    To small no elasticity.

  • 5
    it actually fits and is warm. I sleep in it

    Posted by chris on Oct 29th 2020

    been buying union suits at TSC, thin cotton junk, too small. no monster sizes. yours fits the bill, big time.

  • 5
    Super long johns

    Posted by B. Teague on Jul 27th 2020

    Heavy weight material. Great elastic waist band. I mixed up my reviews. Both top and bottoms are first rate and will keep me toasty when the time comes