Undercover Mens Outerwear. Fashion category: Coats & Jackets. SKU: UC2A4204 BK. Color: Black. Undercover X Eastpak Black Nylon Shirt Jacket. Undercover x Eastpak nylon blouson, featuring integrated backpack storage pouch on the back, adjustable hem, woven brand logo's, front slit pockets with zip closure and a pointed collar. 100% Nylon.