Check the listing for details. US Army Patch US 6th Cavalry Brigade Subdued Sew On. Condition: Used, Made in United States. Listed at 3.59 USD. The US Army Patch featuring the US 6th Cavalry Brigade in subdued colors is a genuine original period item from Vietnam. Made in the United States, this patch is a collectible piece with a militaria theme, showcasing the history and pride of the US Army. Perfect for military history enthusiasts or collectors interested in authentic items from the Vietnam War era, this patch would make a unique and patriotic addition to any collection.