When it comes to vintage American military inspiration, no one does it like the Real McCoy’s, or, more specifically in this case, Joe McCoy. Their latest Seabees Deck Jacket pulls lines and forms from mid-century Naval Construction Forces outerwear, and, as you can tell, it’s meant to keep you warm.

Using a play on words taken from the initials CB (Construction Battalion), the Seabees Deck Jacket is meant to withstand the harshest conditions of winter while providing warmth and protection from the elements. While there’s no telling from the description if it is, in fact, alpaca, the pile lining should be plenty warm regardless. It features a 100% cotton outer shell with two front pockets and a 1940s square Talon zipper.

Available for $841.38 at Superdenim.