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Thermal Top

Polar King

9 reviews Write a Review
SKU:
172.10 XLR
Thermal Underwear Shirt Cotton Polyester Fabric Crew Neck Knitted Cuffs
UPC:
042565811356
Width:
9.50 (in)
Height:
1.83 (in)
Depth:
11.50 (in)

Description

Stay warm, dry, and comfortable through the coldest days with the Men’s Thermal Underwear Shirt, engineered with Polar King technology for superior insulation and softness. Designed to deliver dependable warmth without bulk, this thermal top is the perfect base layer for outdoor work, winter sports, or everyday wear in chilly conditions.

Crafted from a super-soft 50% cotton, 50% polyester blend, the fabric provides the ideal balance of warmth, breathability, and durability. The 9 oz weight ensures lasting comfort and insulation, while the rib knit collar and cuffs help retain body heat and maintain a secure, comfortable fit.

Designed to pair seamlessly with matching thermal bottoms, this shirt offers full coverage and an effective barrier against the cold, keeping warmth in and the chill out.

Combining classic style with reliable performance, the Men’s Thermal Underwear Shirt is a must-have layer for staying comfortable in cold-weather conditions.

Features:

  • 50% Cotton, 50% Polyester Blend for Warmth and Softness
  • 9 oz Fabric for Durable, Cozy Insulation
  • Rib Knit Collar and Cuffs for a Snug, Heat-Retaining Fit
  • Designed to Pair with Matching Thermal Bottoms for Full Coverage
  • Ideal Base Layer for Cold-Weather Work or Outdoor Activities

    9 Reviews

  • Posted by Derrick DeLange on Feb 16th 2025

    5

    Top notch

    Best there is

  • Posted by Charles Minks on Jan 3rd 2023

    5

    Thermal top

    Good product and like the fit. Will likely do a reorder for a second one

  • Posted by Rod Taylor on Dec 22nd 2022

    5

    They are supper. And Last

    When you drop the thermostat to 60 . you will stay warm.

  • Posted by Up North on Jan 24th 2022

    1

    Thermo Top

    Greatly undersized. Recommend ordering two sizes up. My 2X is a medium at most.

  • Posted by Darren Carpenter on Dec 13th 2021

    4

    Thermal tops

    My XXLT tops are much smaller than the Henley in same XXLT size. Otherwise, another stellar Key product.

  • Posted by Jesse Jones on Nov 17th 2021

    2

    Runs very small

    This shirt runs very small, which is surprising compared to other shirts I have purchased from Key Apparel. I would say that these shirts run two sizes small. I usually where a Large Tall and that is a little too long. I tried a Large in this shirt and it fit like a medium. I re order an XL and that was too small as well. I don't know if I will bother trying a 2XL, because you have to pay postage on returns.

  • Posted by Drew Cooper on Nov 1st 2021

    3

    runs small

    Well made. Heavy enough. Tight, though. Consider buying a size larger.

  • Posted by Ervin simon on Nov 12th 2020

    3

    Thermal top

    It was a little small for a5xl

  • Posted by B. Teague on Jul 27th 2020

    5

    Best long johns

    These are well made. Nice thick elastic waist band. Heavy weight material.

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