So why is it that Peaky Blinders style has resonated so consistently? "Because, at heart, I think every Englishman wants to wear a suit." 

1. The Coat

When it comes to your outerwear, your coat should be long, lapelled and heavy enough to withstand the depths of a Birmingham winter (or at least the walk from the station to your office).

"We deliberately used longer coats to get that high noon feeling, when the gangs are walking to each other" reveals Stephanie. "Gunslingers going against each other, as their coats flap in the wind".

Getting the right fit and texture means shelling out, but a great overcoat is more than worth the investment. It's a truly timeless style that will last you for years, will elevate your outfit, and combine with a range of different styles, too. When it comes to material and design, Prince of Wales check, herringbone tweed and other heritage patterns and fabrics are good options, but you'll do just as well with plain dark shades of charcoal, navy, racing green and black.

2. The Suits

"We had a couple of suits made for Cillian, from a fantastic tailor called Keith Watson," says Collie. "You need a good three piece suit. [For the Peaky Blinders look] I'd suggest that you get the trousers narrowed and shortened. I think if even one man has bought a suit because of Peaky, I'll be very, very happy."

If you can opt for a bespoke suit then that's great, but there are plenty of off-the-rack options that will do the job too - although we always advise taking your clothes to a tailor to ensure they fit perfectly. Tweed, checks and textured grey, blue and brown suits are the order of the day for the Shelby clan (apart from Michael, who is beginning to take more influence more his wide-lapelled American counterparts).

Of course, if you want to go for the whole shebang, opt for a waistcoat too - but that comes with its own risks. If you don't want to get mistaken for a waiter/Gareth Southgate, we suggest keeping your blazer on and steering clear navy and black.

3. The Shirt

One of the most instantly recognisable aspects of the Peaky Blinders style is the gang's rotating rail of stylish penny collar shirts. Featuring a smaller, rounder collar than your usual button-up, a penny collar acts as a solid middle-ground between the granddad collar and traditional collar shirt.

But a granddad collar won't do the job. Style yours in crisp white, fully-buttoned, for that Cillian look. Or swap in something darker in soft flannel with a few buttons undone for a more casual winter weekend style. Of all the elements of the Peaky Blinders look, the grandad shirt is perhaps the most versatile.

4. The Boots

An essential element in any even vaguely Blinders-esque look is a pair of solid, stylish and well worn leather boots in dark brown or black leather. "A good pair of lace up boots that go above your ankle," advises Collie.

A great pairing with the higher crop of your trousers, give yours a few laps around the Sunday food market (or an underground bare knuckle boxing match in gangland Birmingham) for the full give-a-f*ck effect, which is, of course, vital. You might have a bit of a hard time wearing them in, but it'll all be worth it.

5. The Hat

They may seem intimidating bulky, but you needn't worry about pulling off a baker boy cap. "They're a really easy thing to wear," says Collie. "Pick the right six-piece section cap, and I think you'd have a great outfit."

When it comes to authenticity and quality, Lock & Co Hatters is the place to go. The St. James Street institution has been crafting hats since the mid-1600s, so they know a thing or two. Alternatively, you could opt for a flat cap instead, which are a more understated expression of the look.

Also - and I really shouldn't have to say this - don't wear it backwards.