Much like beloved TV detective Lieutenant Columbo, we’re big fans of the classic trench coat. While rival brands claim bragging rights over its inception – MR PORTER stocks Burberry’s signature cotton-gabardine line – no one can question its lasting power. But one thing still bothers us: how do you style it in winter? Well, the key reason this design has stuck around for so long is its functionality. It will take whatever the weather can throw at it. And it lends itself to layering. We suggest a nice toasty knit underneath on colder days, or a scarf thrown nonchalantly over your shoulders.

Ever feel like going to work is like going into battle? As with the trench, the shape of the overcoat owes a lot to its military pedigree, drawing from the greatcoat or watchcoat of the 19th century – so called as it was worn while on watch. To that end, it traditionally featured an oversized collar, to protect against the wind, and ample pockets (legitimately for stashing snacks). It was also fashioned from a hefty woollen fabric. And where the lighter trench often ended around the knee, it would typically fall closer to the floor. This is a coat that should envelop you. Meaning you can wear it with anything – with that in mind, choose your coat wisely, as it will tend to dominate your outfit. Clearly, it scrubs up for smarter looks, but don’t shy away from having sneakers peeping out at the bottom. Not for nothing do they call it a greatcoat.

Never to be outshone by the army, the navy has also long served as a testing ground for menswear – albeit one at sea. The peacoat can be traced back as far as the 1700s, with original details still present today. Shorter than its landlubber counterparts, it is characterised by broad lapels and a double-breasted front, with vertical pockets. Buttons would have been made of wood or metal (now plastic); reefer coats were reserved for officers and boasted golden buttons and epaulettes. A heavy-duty woollen fabric was again used to fend off inclement weather. And while a peacoat might dial back the high-stakes, long-length drama of a greatcoat, it still comes with a bit of swish. Plus, scope for the rest of your ensemble to get noticed. Go up a size and, should it get really bitter out there, consider tucking another coat such as a bomber jacket underneath.

Think “shearling jacket” and Top Gun might be the reference on your mood board. But what sets sheep skin apart is how warm and cosy, not to mention breathable and flexible, it is. As such, it should be more of a feeling than a designated look. Above, a more directional take on Harold from Harold And Maude. Or try a duffel style as a point of difference, perhaps pulling Paddington into play. Whomever is your cinematic guide, what’s important is this premium material will keep you wrapped up all winter – in a style that suits you.