Key Thermal Underwear

Top sellers

Testimonials ( 74 )

Review By Susanne McCullough,
Have ordered a few times from MN work wear and had great experiences. The latest order had a paypal ...
Review By Alvin Browning,
delivery was fast, pants are a great fit.
Verified Purchase
Review By Mark Schoenberg,
I ordered on 6/10 and It took 6 days for you to ship my order. it should be here by the 6/21. I like ...
Verified Purchase

Purchase a gift voucher


Key Thermal Underwear 

Key Thermal Underwear

Key Thermal Underwear: Warm and Comfortable

Key Thermal Underwear

Key Thermal Underwear, designed specifically with the workingman in mind, cost right around the same as cheaply made items found at big box stores. As soon as you touch the soft, durable fabric, you will see the difference in quality. Available in Regular and Tall sizes up to 6XL, Key has ensured its long underwear products are sized to fit any man, with any body type.

A soft-weave pattern of comfortable cotton and durable polyester ensures these long underwear won’t fall apart in the wash, and can stand up to the abuse you’re sure to put them through every day. Unlike pure-white products, their Natural hue is stain-resistant, and Key stands behind the quality of its modern, fair-pay clothing factories.

Minnesota Workwear has the lowest prices you’ll find on Key Industries thermal underwear and other workwear products. We offer fast and low-cost shipping, and stand by everything we sell to make sure it is free from defects. Also see our collection of work shoes and boots, plus heavy waterproof work jackets from Key.

  • Regular and Tall sizes up to 6XL.
  • Youth sizes are also available.
  • Stain-resistant Natural hue.
  • Heavyweight, durable 9 oz. fabric.
  • Soft, moisture-resistant 50% cotton/50% polyester blend.
  • Comfortable crew neck and knitted cuffs
  • Whisks sweat and moisture away from skin.

Key Thermal Underwear Brings Warmth and Comfort to the Toughest Jobs

If you work with your hands, especially outdoors, chances are high that you’ve had to struggle through some of those days where it’s just plain freezing out. Even a thick pair of work jeans and a good set of boots aren’t enough to keep out the bitter cold. Key Thermal Underwear undershirts and pants bring a layering effect, helping you make the most out of your waterproofs and other workwear.

You work too hard to have freeze your butt off every morning. Heck, you could even buy three sets before the weather gets cold again for right around $100. The durable weave and Natural color will ensure you’re covered for years to come.