This one particular pair had to have a defect on the right shoe because as soon as I put them on, the arch on my right foot started hurting. Walking around the house was hurtful, so I did not dare to run in them. I returned them. I got a different pair from a store, after trying them on, and had no issues. I can say it is a very nice shoe, airy and with a solid sole. It is really not good for running on asphalt/concrete or solid level surfaces, but on rough trails is great. It is not great for hiking.