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Thermal Bottom

SKU:
173.10 XLR
$16.99
(8 reviews)    | Write a Review
Only left in stock – Order Soon!

Interested in bulk ordering or customizing this product?

KEY for Business

KEY for Business offers in-house embroidery and screen printing with no order minimums for your workwear and office wear needs.

KEYAPPARELSTORE.COM

Stay warm and comfortable through the coldest conditions with the Men’s Thermal Underwear Bottoms, designed to deliver reliable insulation and all-day comfort. Perfect as a base layer for outdoor work or winter activities, these thermal pants provide the warmth needed to take on any cold-weather challenge.

Crafted from a high-density yarn blend of 50% cotton and 50% polyester, the 9 oz fabric traps heat effectively while maintaining breathability and softness against the skin. This durable, super-soft material keeps warm air in and cold air out, ensuring consistent comfort during long hours outdoors.

The elastic waistband provides a secure, flexible fit, while the ankle-length design with rib knit cuffs helps retain heat and prevent shifting throughout the day. Designed to pair perfectly with the Men’s Thermal Underwear Shirt, these bottoms offer complete coverage and dependable protection from the elements.

Features:

  • 50% Cotton, 50% Polyester Blend for Warmth and Softness
  • 9 oz Fabric for Durable, Cozy Insulation
  • Elastic Waistband for a Secure, Comfortable Fit
  • Ankle Length with Rib Knit Cuffs to Retain Heat
  • Ideal Base Layer for Cold-Weather Work or Outdoor Activities
  • Designed to Pair with Men’s Thermal Underwear Shirt for Full Coverage

8 Reviews
  • 5
    Top notch

    Posted by Derrick DeLange on Feb 16th 2025

    Best there is

  • 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
    Clothing

    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