The heart of the Cold Weather Clothing System is expedition weight polypropylene thermal underwear. The Polypro Thermal Longunderwear is Army tested and issued as part of the ECWCS program. The Polypro long underwear have a silky smooth comfort.
eBay
Excellent gently preowned condition with little to no apparent signs of wear - no rips holes stains or tears as pictured. Fleece lined like a sweatshirt. Please see photos for measurements to ensure desired fit.
eBay
Baffin Bay Heavyweight Long Johns Thermal Underwear sz XL VTG NWT USA MADE NOS . Condition is New with tags. Shipped with USPS Ground Advantage. (A)
eBay
NOS Vtg 1990s US Military Cold Weather Under Shirt Qtr Zip Polypropylene Small New old stock from the early 1990s. Unused and very soft on the inside. Approximate measurements for size small: Armpit to armpit 22" Length 26" Ships quickly
eBay
Polartec Mid Weight Grid-Waffle-Thermal Pants, Level 2 Gen III XL-Long. POLARTEC POWER DRY FLEECE. Grid Fleece Material.
eBay
Military ECWCS Gen III Silkweight Underwear. Level 1 Of The ECWCS System. Beat The Cold This Fall And Winter With The Best Under Layer Available! 100% Polyester Jersey Knit Fabric.
eBay
Stay warm and dry during cold-weather activities with this Morgan Two Layer Heavy Performance Thermal Shirt in size Large. Machine wash warm, line dry. Reinforced seam construction for extra durability.
eBay
Vintage Active Thermal Blue Sleeve Base Layer Top Womens Size M Ameraklon. Light wear to the fabric all over. There are pictures with a tape measure to show measurements. Vintage!
eBay