Duofold Expedition Baselayer Thermal Shirt

Heading out into extreme cold weather?  The Varitherm® Expedition Crew combines two insulating layers into a single layer for warmth without the extra weight and is ideal for high intensity activities. 

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American Owned and Operated


20+ Years In Business

Returns Accepted

Ships from Pennsylvania



  • Sleek expedition-weight fabric traps warmth between two thermal layers.
  • Wicks Sweat From Your Skin, Dried Quickly
  • Chafe Free Comfort
  • Resists Garment Odors
  • 360-dree Stretch Allows for Maximum Ease of Movement
  • Drop-tail Hem Provides Extra Coverage
  • Tag Free - No Itch, No Scratch - With Non-Chafe Flat-Lock Seams
  • Get on its Own or as Base Layer Thermal Underwear
  • Made from 2-Layer 96% Polyester/4% Spandex with Quick Drying Moisture Control and 360-Degree Stretch

More Information

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Customer Reviews

Really quality

Review by Rashaan I.
Verified Buyer

Really quality shirt.

doesn't have cuff at bottom of sleeve

Review by Carre H.
Verified Buyer

nice thick shirt but doesn't have cuff in case that is important to someone

The best

Review by Larayne I.
Verified Buyer

These are the absolute best thermals. I’ve tried quite a few ( and sent them back) as I was looking for something specific… heavyweight yet super soft. These are those!!

solid value as a base layer for cold weather

Review by Walton Y.
Verified Buyer

for extra warmth without extra bulk

Like wearing a gentle hug all day long!

Review by Jaquane G.
Verified Buyer

Super, super comfortable. Provides body temperature warmth without overheating and keeps it close to your body. Bought them for off- shore fishing in the winter months as an under-layer & they worked well. Found myself wearing them every day, all day, regardless, even if I am hanging around the house. It just holds on to your body temperature.


Review by Burnett E.
Verified Buyer

I wound up buying more for a friend

Really nice

Review by Laina C.
Verified Buyer

Really nice shirt, would recommend.

Sizing is great....

Review by Haylee J.
Verified Buyer

Very happy with my purchase.

Great base layer.

Review by Cher Y.
Verified Buyer

I bought a set of the top and pants at a local store 10 or so years ago and have since worn the top so much that its threadbare and needed a new one. This one is just as warm and wonderful and i will be buying another when in stock. They are an awesome base layer with exceptional warmth.

Keeps you warm. Good layer

Review by Shawntel K.
Verified Buyer

would buy again

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