MILAN - Every season the Canadian designing twins, Dean and Dan Caten, creators of the DSquared2 label, present their wears in a different runway setting. For next winter, the show theme is a 1940s jazz club complete with pretty girls and a trumpet blowing, white tuxedoed band.

The DSquared2 guy has just come home from the front and is looking for a good time. At first, he still sports his army private hat, crumpled military jacket, trim trousers and sturdy combat boots with thick crushed socks.

But he soon gets the swing of things and comes out on the dance floor in an impeccable sartorial double-breasted wide-lapeled suit, accessorized by an exaggerated bowler hat and slick footwear. He now wears his pants low-slung, and his shirt tails stick out from under his fancy cashmere crew-neck sweater.

No matter what the current theme, you can't spell DSquared2 without jeans. This round they come loose and worn out, but also carefully pressed to match the classic camel hair coats, and luxurious Astrakhan furs featured in the show.

The contemporary secret of the look is techno fabric, which allows an outfit to be ultra-light while maintaining its formal structure. The latest DSquared2 "Napoletano" jacket appears super tailored, but is in fact unlined, giving it the feel of a cardigan.

Colours for the new winter collection presented Tuesday, are mainly monochromatic: black, white, gold, red and green --military and not. Favorite accessories include waistcoats, suspenders, pocket watch chains and a tuxedo bib.

LOOK: 10 Style Faux Pas Guys Need to Stop Committing

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  • Oversized suits

    The average American guy is wearing a suit that is one or two sizes too big. Larger clothes do not make you look more muscular or powerful, they make you look smaller and sloppier. .

  • Square-toed dress shoes

    I believe in the philosophy "never say never," but square-toed dress shoes never look flattering. Your feet are not square, so your shoes shouldn't be either.

  • Tie too short or too long

    The tip of your tie should just touch the top of your trousers. Anything else looks sloppy and shows a lack of attention to detail.

  • Fake distressed/Overly embellished jeans

    A man's jeans should be simple, unembelished and natural looking. Avoid cheesy fake distressing, outlandish back pocket details, and, of course, anything with rhinestones. .

  • Sloppy trouser break

    Nothing makes a pair of trousers look sloppier than an excessive amount of fabric spilling over the shoes. Have your pants tailored with a light break, hitting about halfway down the back of your shoes. .

  • Ironic T-Shirts

    We get it: you're a funny guy. You don't need to announce it to the world with an obnoxious "That's what she said" T-shirt.

  • Hybrid shoes

    There are loafers and there are sneakers, each great for certain occasions. Cross-breed them, however, and you have a shoe that isn't appropriate for anything. .

  • Office shirts worn untucked for a night out

    The ultimate "bro" look that you see at every college bar: a business shirt worn untucked with jeans. It either says "I don't know" or "I don't care." Neither are going to help you at the bar.

  • Tie bar wider than tie

    A tie bar should be the same width as the tie it's fastening. Slightly narrower is okay, but never wider. As far as vertical placement, it should be worn around the sternum, just below the chest muscles.

  • Overstuffed wallets

    Lose the unsightly bulge in your pocket. Streamline your look with a slim card case that holds a few bills, a credit card and a couple forms of ID. You definitely don't need all those old receipts and business cards from people you don't remember.