Good news - you don't have to be formal to be stylish this autumn.

The best menswear shops are bursting with warm, luxurious knitwear, tailoring and outerwear, the key looks being bomber jackets, military, shearling and absolutely anything in dark blue. So however cold it may get, there's no simply excuse for sloppy dressing because we’ve done all the hard work for you.

Men instinctively know how to stick to the classics. Their clothes don't reflect the same wacky and, sometimes outlandish, trends as women's wear. The distinctive styles of men's fashion trends are on a much slower cycle, which means many of the trends for men will be in fashion in 2012 and beyond. But there are still new trends within those classics - says Georgina Heffernan.

Seen at Ferragamo, Cavalli, Armani and Pringle, the turtleneck has been resurrected this season. From grunge to mod to preppy, the basic turtleneck — one of those wardrobe workhorses — can morph into almost any look you want it to be. Wear it under a three piece suit (seen at H&M) or layer it under jackets for a laid back, casual look.

Image courtesy of River Island

A mainstay of male fashion, the leather bomber jacket is making a huge comeback this season. The leather bomber jacket, in olive, tan, grey and brown, was omnipresent in Milan, with several modern takes on its classic design. With new colours and trims; it’s once again a must-have for any man’s wardrobe this autumn.

The colour of the season, the (shudder) "new black?" Why, it's navy of course. Most guys like wearing blue and feel they look good in it, so this is an easy trend to wear, A new take for the season is wearing various shades together, such as a navy jacket with an indigo shirt, or try mixing navy and black together for a stylish twist.

Image courtesy of House of Fraser

The military theme has marched strong across the fashion capitals of Paris and Milan. Gone is the embellished, souped-up military trend from the last few seasons, this time around it’s pared down and minimal. How to rock the look? Army greens and khakis inject some into your winter wardrobe for an effortlessly utilitarian twist.

The catwalks of Paris, London, Paris and New York were all awash with next season’s hottest fabric; leather. From full on leather three-piece suits to floor length leather coats, leather was hard to avoid. The key to pulling the leather look off successfully is to avoid the severe catwalk head-to-toe leather styling, and opt for a more subtle feel. I am sure most readers of this site will already own a leather jacket, so why not dig out something from your existing wardrobe that (consistently) remains on trend.

Image courtesy of River Island

One of the most popular styles of men's shoes for winter is chunky boots with laces. The lapels made of fur, fabrics, leather and knitted fabrics are fashionable in the new season. Wear them over or under, in or out, with suit pants or with jeans.

Image courtesy of House of Fraser

In addition to bold colors, cardigans and vests with V-necks, are among a must have this season. A simple grey V-neck is your solution every time you are facing a fashion dilemma. This classic piece can add so many variations to your outfit that one can never get tired of wearing or looking at it. Team it with denims, coloured trousers, pants or simply wear a jacket over it.

Georgina Heffernan