The general life expectancy of performance running shoes is 300-500 miles, and we rigorously test them to ensure they live up to those standards. Replacing your shoes within this cadence ensures that you are getting the kind of performance our shoes are designed for. We recommend regular rotation of a few pairs of good shoes to ensure the highest level of performance.

If you do not track your mileage, there are a few ways to check and see if your shoes need to be replaced:

• The tread: When shoes are worn down, the rubber outsole will start to appear smooth and the tread will be worn down. This won't necessarily happen throughout the bottom of your shoe, just in the places where your foot has the most impact.
  
  
• The midsole: Over time the cushion in the midsole will start to compress which will often look like little wrinkles in this area. This is natural over time and may even happen more quickly if the shoes are used for work or daily use due to the constant impact on the foam.
  
  
• The twist test: While shoe flexibility will vary between models, generally there should be some resistance when attempting to bend the shoe at the midway point. Some shoes are designed to be lighter weight and more flexible, but for the majority of shoes, if they are easy to twist/bend they likely need to be replaced.