It also makes perfect sense that women enjoy wearing those stylish clothes outside of the gym and it is this crossover from athletic wear to mainstream leisure style that characterises this exciting new look.

According to a recent article in the New York Times, this rapidly growing market is now worth some $100 billion (around £78 billion) so clearly the designers have hit on a winning formula.

Perhaps it is the element of cool urban street style that gives this new trend an edge or it could be the nod towards a new, fitter, healthier lifestyle. It may just be that these styles are so comfortable and easy to wear but whatever it is almost every woman now has at least a few key pieces in her wardrobe.

Like any trend, there are certain key pieces that should form the backbone of the new Athleisure look. One of these is the sporty jacket. Modern fabrics are designed to be light and breathable and mesh finishes are popular. Look for hoodie styles to accentuate that street cred. The tank is another staple piece and is an important component in a layered look.

Look out for exciting colour blocking and striking prints to create a vibrant look. When it comes to leggings, fit is vital and fabric should be selected to match the activity and ensure everything stays in place during any exercise. Sports bras are now merging with crop tops to create a brand new fashion item. A long-sleeved top is another must-have to complete the style and is a great way to keep muscles warm after a workout, while successfully transitioning your look from gym to street style.

One of the great things about this new trend is how easy it is to wear. A key style strategy is to use layering to create a flexible and sophisticated look. From crop top to tank, long-sleeved top and jacket, various layers can be combined to suit activities and tailor the outfit for pre and post exercise socialising.

To complete the outfit, don't forget some stylish accessories. A suitable bag is another vital component and there are loads of fashionable and practical options to choose from. These are bags that are more than capable of carrying the necessary kit but are still elegant enough to look great when meeting friends at the cafe bar. You can also add a chic blazer or stylish sunglasses to take this style to a higher level.