The standard advice is to replace your runners after 500–800 kilometres. But science shows it could be more or less – here are the three signs to look out for.

"After a challenging run the first thing that you want to do is take off your shoes and socks, allowing the foot to relax without any confines. Putting your feet back into regular shoes just doesn't hit the spot – your foot won't relax and as a result, won't feel comfortable,” explains John Jennings, a footwear buyer at Runners Need.

On the hunt for the perfect daily running shoe? Our resident runner tried the Adidas Supernova Rise running shoe, here's her thoughts.