We're issued a plain old Gerber jacket, This one from Galls, that has a bellow pockets on the front and a hand warmer pocket underneath.
Last night an officer found that he had been nominated to be a rather large pit bull's next meal, well the officer is rather skinny and might have just been a snack. Fortunately it was just one dog and not one of our infamous herds of urban cattle. Skinny officer, with a mace can in front of his pistol, and a bellow pocket with hand warmer pocket, is a perfect combination for a hand-warmer pocket that has turned into a wide open net.
The pit bull charges the officer. The officer draws, drives his pistol towards the threat, with the muzzle of the pistol going into the hand warmer pocket of the jacket. He fires a round through his pocket and shoots the street, the pit bull decides that there are easier meals out there and runs off. The pistol malfunctioned and the officer cleared it and called it in to dispatch. He's going to be the laughing stock of everything for a while, but had then been a gunfight or pack of dogs he would have been in some serious trouble.
I'm rather portly so this being an issue I've thought about. If you're one of those officers that's into eating healthy and that running nonsense, make sure your winter jacket isn't in a position to screw you over.