Here’s something I bet nobody’s seen - and feel free to roast me for it: the 5.11 Tactical Trench Coat
It’s from a super old product line geared towards VIP protection personnel, I’d call it more of an overcoat than a trench coat imo given it’s clearly meant to be worn over a suit. It’s neat, has magazine/tool pouches on the inside that you can switch around. Inside the lining of each breast is a Velcro section to attach a holster - this concealed carry compartment can be accessed either from the velcroed opening or more covertly from the hand pockets. It also has a removable brown suede collar to fancy it up a bit.