Left to right: D&G Charcoal Tweed Shawl Collar Coat: £635 my-wardrobe.com; Scotch & Soda Herringbone Jacket Blazer With Inner: £219 stand-out.net

The tweed jacket is, once again, the most popular way to wear this material, and probably always will be. Tweed is stylish yet durable, if not entirely water-proof, making it a fabric which is often best-suited to outerwear. Contrary to popular belief, almost anyone can wear the wear a tweed jacket, no matter what their stance on fox hunting or similarities to iconic detective, Sherlock Holmes. This season, there’s a good range of options when it comes to wearing tweed – from lightweight blazer styles to heavier overcoat types. The key is to add layers, in order to give this look a more modern and slightly preppy feel.

Left to right: Penfield Millwood Green Tweed Trousers: £80 Urban Outfitters; Penfield Idelwood Back Pack in Green Penfield Tweed: £65 mainlinemenswear.co.uk

Whilst the jacket might be the most traditional way to wear your tweed, it is far from the only option this season. Tweed trousers, for example, have long since graduated from being solely the preserve of university lecturers and Time Lords alike, and look suitably on-trend worn with brogues and buttoned-up penny collar shirts. However, if you’re tempted to venture away from the more subtle herringbone twill weaves, then tweed accessories are probably your safest bet. From large weekend holdalls to smaller satchel styles, tweed is a superb choice when it comes to bags this season. With its gentlemanly connotations, a tweed bag also has the advantage of ensuring that you can gallantly offer to carry any luggage, without having to compromise on style. And they say chivalry is dead…

Fashion Crime 1: Short-sleeved shirt and tie

Perhaps the most frequent offender of the summer months is the short-sleeved shirt and tie combo. Each item on its own is unlikely to cause offence, but unless you’re being forced into some sort of unfortunate uniform, this pairing is simply unacceptable. It’s illogical, for a start, and it certainly is not the perfect solution to staying cool on a busy train while retaining a look of formality.

The Solution:

Really, a long sleeved shirt and classic tie is the only way to make sure you look sharp in a suit, so make sure you choose cotton options if you need to stay cool. If you really cannot brave wearing full-length sleeves and a tie, then opt for a classic shirt with a buttoned-up penny collar instead. Just as smart, and right on trend. Otherwise, my only suggestion is to keep an eye on the boss to see when it has been officially deemed too hot for tie-wearing, and make the most of those casual Fridays…

Fashion Crime 2: Trainers with a suit

Now to those of you wearing trainers…with a suit. This might seem ok because, you know, you have a perfectly good pair of work shoes in your bag, or under your desk, but trainers are just more comfortable. Or, worse still, you might be under the illusion that pairing your pinstripe suit with a pair of Converse’s is actually quite a good look. If you’ve just mumbled something to yourself about it being ‘more practical’, then it may already be too late for you.

The Solution:

Invest in a good, comfortable pair of smart shoes – and then, for goodness sake, wear them. If black seems too formal, then tone it down with a brown vintage-inspired pair. Patent material is certainly smart, but can easily come across as old-fashioned of not worn in a modern style. If you keen to keep it casual, then there are plenty of ‘worn-leather’ options around at the moment, which tent to be more comfortable too. You can’t go wrong with a classic pair of brogues, which can be easily switched for loafers during the summer months. On the other hand, there are a number of smart trainer styles available at the moment, which are certainly preferable to a scruffy pair of old Reebok’s and can be easily matched to the colour of your suit.

Fashion Crime 3: Ill-fitting suits

Considering the number of people who will happily use the irritating phrase, “all over it like a cheap suit”, you’d think more would know what a cheap suit looked like. Evidently not. That said, if your suit doesn’t fit properly then it will never ever look good, no matter how expensive it is.

The Solution:

You can have your suit professionally fitted and altered, which is probably the best way to guarantee a perfect fit. Otherwise, just look in a mirror? A suit which is too tight is just as bad one which is baggy , and it’s usually a good idea to get a second opinion from someone other than the shop assistant. Most suit retailers will offer a range of different styles, such as those specifically designed for athletic builds, so find the one which is best suited to your body shape. Don’t, for example, squeeze yourself into a skinny suit if you’re, um, not.

Fashion Crime 4: Rucksacks

An alarming number of rucksacks seem to have crawled onto the backs of otherwise well-dressed individuals of late. It might be a gym kit, but the best way to make people wonder if you work out is not by having an ever-present sports bag.

The Solution:

Short of a Tesco carrier bag, almost anything is preferable to this mismatched combination. If you don’t fancy surrendering your sense of ‘boyish charm’ to a briefcase, but would rather avoid looking like you’ve taken style tips from Boris Johnson, then opt for a stylish messenger bag instead. These bags are also the perfect alternative to the generic laptop bag, whilst leather options will always look smart and stylish. If satchel style just ain’t your bag, so to speak, then keep it sporty with a retro duffle gym bag, which will still look a little less like you’ve brought your P.E. kit to work.

Fashion Crime 5: Pink Trousers

Lastly, I’d like to address a new and worrying trend which appears to be taking over the nation’s commuters: pink trousers. There’s been more than a few fashion faux pas which have taken place in the name of ‘metrosexuality’ over the last few years – some of you may even have the candyfloss-coloured pink shirt still lurking at the back of your wardrobe to prove it.

The Solution:

While the Sloane Ranger style might be making something of a comeback, it’s probably best to nip this particular fashion disaster in the bud. Anyone planning to sit on public transport should already be aware that pastel-coloured pants are never going to be a good idea. Even if you don’t need to wear a suit on a daily basis, black or blue tends to be a far safer option. If you really can’t resist proving your manliness with a pair of coloured trousers, then either go for darker shades, such as burgundy, or else team your pastel pants with a polo shirt and catch the next train to Chelsea.

…and the fact that it’s made to such a high standard and ultimately it looks superb!

This bag would look great with some straight jeans, a funky cardigan a pair of plain trainers available from .

The City Courier Messenger Bags are based on the first original pizza courier bags used by delivery services worldwide. Just like the glorious, perfect food from which they come…. these bags are hot!

These are currently selling for £29.50 which is a steal! Grab one today.