When you take your new ASICS running shoes out of the box all pristine and clean, they are also at their most protective and supportive. But like any product, they wear down over time. UK-based Podiatrist and ASICS PRO Team member Clifton Bradeley explains when and why you should change them.

'Like any product used regularly, they will wear out eventually. How quickly this happens is determined by your mileage, body weight and foot type.'

"I would recommend you change your running shoes between 720 to 880kms."

Apart from keeping a mileage log, there are a few tell-tale signs to help you decide when to buy your next shoes:

If you identify one or more of these factors visit a specialist running store and take your old running shoe to have an expert opinion and new shoes fitted.