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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As low as: $33.95

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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
Overall Rating
<p>Really quality</p>
Review by Rashaan I.
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<div id="review-video-id-R3FRWBFRR8EKWU" class="cr-video-desktop cr-video-desktop-placeholder" data-review-id="R3FRWBFRR8EKWU" data-video-url="https://m.media-amazon.com/images/S/vse-vms-transcoding-artifact-us-east-1-prod/d62cc8e8-6cc0-4c8e-89ee-3dabc3822fae/default.jobtemplate.hls.m3u8" data-thumbnail-url="https://m.media-amazon.com/images/I/41DhObiGDHL._SY256._SY256.jpg">
<div class="cr-media-status-container">Really quality shirt.</div>
Overall Rating
<p>doesn't have cuff at bottom of sleeve</p>
Review by Carre H.
<p>nice thick shirt but doesn't have cuff in case that is important to someone</p>
Overall Rating
<p>The best</p>
Review by Larayne I.
<p>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!!</p>
Overall Rating
<p>solid value as a base layer for cold weather</p>
Review by Walton Y.
<p>for extra warmth without extra bulk</p>
Overall Rating
<p>Like wearing a gentle hug all day long!</p>
Review by Jaquane G.
<p>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.</p>
Overall Rating
Review by Burnett E.
<p>I wound up buying more for a friend</p>
Overall Rating
<p>Really nice</p>
Review by Laina C.
<p>Really nice shirt, would recommend.</p>
Overall Rating
<p>Great base layer.</p>
Review by Cher Y.
<p>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.</p>
Overall Rating
<p>Keeps you warm. Good layer</p>
Review by Shawntel K.
<p>would buy again</p>
Overall Rating
<p>Sizing is great....</p>
Review by Haylee J.
<p>Very happy with my purchase.</p>
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