There are a variety of brand names in the designer jeans sector. In general terms buying jeans here will be down to the brands that people like or aspire to and the style they want to wear. Diesel and Evisu jeans, for example, have established a strong market amongst younger shoppers whilst the Armani Jeans brand name appeals to all ages and offers classic styles with a designer look and feel. Lambretta jeans often prove popular with people looking for a certain 'street' look.

Some people like to stick with a tried and tested brand of jeans whilst others buy based on the style, design and look and therefore may not be that concerned by buying from one brand name. As well as having a lot of designers to choose from, shoppers also have to decide on other factors such as style, colour and materials.

For example, some people only like to wear button fly jeans whilst others like to have a zip. Some prefer a bootleg cut, some prefer a comfort fit whilst others like a straight leg or a slim fit. A lot of the decisions to be made will be down to personal preference although body shape obviously plays a part -- some jeans brands simply don't seem to look good on certain body shapes whilst others will fit just fine.

There is also a lot of choice when it comes for materials and looks. Colours with jeans range from black down to dark blue and then to light denim. Some jeans are distressed, some are stone-washed, some are faded and some are pre-treated to give a 'dirty' look. It is possible to create two completely different looks with two different pairs of jeans -- one pair can make the wearer look smart-casual whilst another can make them look completely casual.

With most designer jeans being more expensive than standard jeans it is important to think about issues such as quality before buying a pair. Luckily, quality is generally of a high level here -- designers rarely put their names to poor quality materials and workmanship.

Buying jeans online is a popular way of getting hold of designer jeans at favourable prices but this can make it harder to ascertain fit. Some will use the high street as a glorified fitting room, trying on a pair before whizzing home to buy online at a discount. In practice, it is worth taking some time to research the jeans before you buy them to get it right. For example, take some time to read up on the detailing on the jeans. A good e-tailer will also list all of the measurements. It's important to pay attention to these measurements as they will help ensure the perfect fit.

Remember that perhaps the easiest way in which to check the measurements is to compare them with the measurements of a pair of jeans that you currently own. This will show you how the jeans will potentially fit. Of course, if you are buying jeans from a favourite brand then you will already probably have a good idea as to how well they will fit.

The key factor to consider is how good the jeans feel when wearing them. Jeans should be comfortable to wear -- if they are not comfortable then they will rapidly find their way into that dark, dusty section of your wardrobe! With so many choices on offer here, however, there is almost certainly a pair of designer jeans to suit.