Winter combat shirt in scorpion with thick thermal grid fleece material from the ecwcs level 2 grid fleece in the body and sleeves. Warm. Not a bad winter CS from Tru Spec. :
AcE Winter Combat Shirt | UF PRO
Tru-Spec Men's Winter Combat Shirt | eBay
T.R.U. 1/4 ZIP WINTER COMBAT SHIRT | TRU-SPEC : Tactically Inspired Apparel | Combat shirt, Combat jacket, 1/4 zip
Tru-Spec TRU 1/4 Zip Combat Shirt
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Tru-Spec Winter Combat Shirt - The Gear Freak - YouTube