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Used Army Power Dry Undershirt, ECWCS Silk Base Layer 1 Shirt


These are the base layer thermals that the US army issued with the classic BDU (woodland) uniform.


We offer free returns! We will accept all returns of items purchased from us with the exception of consumables such as MRE's, chemlights, batteries etc. All new items must be returned undamaged in the original packaging that they arrived in. Clothing that had tags must be returned with tags still attached. Any item that is returned in any condition other than the original condition will be subject to a 20% restocking fee.



This undershirt is used.  Used means it is in very good condition with some very light wear.  No rips, holes, stains, blemishes or excessive wear guaranteed!

If a camping and hiking trip in the rugged mountains, or anywhere for that matter, doesn’t sound appealing, the Extended Cold Weather Clothing System (ECWCS) thermal undershirt will come to your rescue. The next time that invitation comes your way, you can confidently accept because you know that you can just pull on your lightweight shirt to use as pajamas and you will stay toasty warm during a chilly night, yet cool when wearing it during that hike in the heat of the day. 

This Layer 1 shirt was designed by the US military to help soldiers survive through any weather condition they encounter. It can be worn by itself in a casual manner or under other layers. Because of the special durable construction of the fabric it not only provides insulation, it aides in the transfer of moisture (known as moisture wicking). 

What this means for you is that during that cold camping night, your light weight thermal will keep you insulated without the bulk.  And what about that hike in the heat of the day? The fabric in this shirt is highly breathable and fast drying. This evaporative cooling system, again without the bulk, is moisture wicking and will, therefore, keep you cool when your hiking companions feel uncomfortable enough in their regular clothes to return to camp early.

This shirt is highly durable, does not restrict movement and, for added comfort and convenience, has a long tail and thumb holes. So go ahead and accept that invitation with confidence, just make sure to take along your ECWCS Layer 1 silk weight thermal shirt.

  • ECWCS Gen III, Layer 1
  • Black
  • Light weight
  • Power Dry technology

Additional Info

Additional information

Weight 0.318 oz

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