Even though treadmills provide a cushioned surface, they still cause shoes to wear. Gleaton stresses runners should look for excessive midsole compression or visible sole degradation—the signs you should look for with all running shoes—when assessing if it’s time to get a new pair.

The Fresh Foam x 1080 v 14 is already a highly revered running shoe for longer distances, due to its midsole cushioning and rocker profile, but New Balance have now collabed on a designated trainer for the TCS London Marathon – making it an even better choice.

Rotating shoes is beneficial for your body, too, Costigan says. She explains that running in a lower drop shoe, for example, can put extra stress on your calves, so giving your body time to recover with a higher drop shoe on another run can help you sidestep aches, pains, and injuries by reducing stress on that muscle group.