These are fleece caps in Polartec Micro Fleece. They are of the same design and quality as the standard fleece cap used in the US Military.
Military Polartec® 100% Fleece Watch Cap (One Size) – McGuire Army
USGI Polartec Military Issue Black Micro Fleece Cap GEN III ECWCS
COMESANDGOES POLARTEC FLEECE CAP
Rigs of the 2021 Oregon Timber Trail
Rigs of the 2021 Oregon Timber Trail
激安店 Captains helm micro fleece flap cap - 帽子
卓出 SO ORIGINAL POLARTEC® BALACLAVA HOODIE
McGuire Gear Grid Fleece Cap – McGuire Army Navy
楽天市場】Mcguire Gear Fleece Military Watch Cap 3-colors
超人気新品 Captains helm micro fleece flap HELM CAPTAINS cap HELM
お徳用 FLAGSTUFF POLARTEC FLEECE G-8 - ジャケット/アウター