There is a feeling of use. I've run about 400km, and while there's some wear on the soles, I don't think the midsole has deteriorated much. There are reviews saying people have run about 1000km in them, so I think they're still wearable, but I'm selling them because they didn't fit my feet. I cleaned them regularly, so I don't think there's any severe dirt. Please judge from the photos.