The postman uniform and dirty postman uniform are outfits in Fallout 4, worn by mailmen in the Commonwealth in 2077. It consists of two items: the postman uniform and the postman hat.
The postman uniform consists of blue pants and a blue long-sleeved jacket worn over a button up white and blue striped shirt with a black tie. It also includes black boots and a bag worn over the shoulder with U.S. Mail printed on it. The wearer's Charisma and Endurance are both increased by a single point. It cannot be worn with armor.
The postman hat is a dark blue hexagon-shaped hat with a post badge adorning the front above the bill. When worn it provides a single point to Endurance.
Locations
A clean postman uniform and hat may be found in the DIA cache at Hub 360 as part of the Jackpot: Hub 360 quest.
A clean postman hat can be found on the bar next to a skeleton in Prost bar.
A dirty uniform can be found backstage on a shelf inside Warren Theater.
A dirty hat can be found on the oversized teddy bear 'bus driver' on the bridge north of Egret Tours Marina.
A ghoul can be found wearing a complete mailman uniform in Goodneighbor.
A uniform can be found on a dead settler along with 3 letters in the random encounter The Dead Postman.
Can be bought from Anne Hargraves if recruited to a settlement and assigned to the appropriate clothing shop.