Shoe manufacturers do not publish “retirement” ages for each shoe and to date, there is no comprehensive database of this information. Thus, we worked with experienced retailers and runners to offer the best guidelines available, based on type of shoe and shoe weight.
Retirement mileage will differ for each individual based on numerous factors like weight, running/walking style, running/walking surface, shoe care (alternating with second pair) and more.
Your specific retirement mileage MAY DIFFER from the mileage noted in our App.
An important metric to watch as your shoes age is Rate of Impact.
As the foam breaks down, your rate of impact increases, which can be a risk for injury.
For a case study, check out this BLOG.