Noticed today after the third wear that the sole rubber is sort of disintegrating. Worse on the outside part of heel. Attached picture shows where the rubber is missing altogether and foam popping through. But lot of wear on the entire under-heel part of shoe.
Part of my running takes place on a firm unpaved bike path, and wondering if I should not have done that. Before seeing this damage, it never crossed my mind before that the surface was too “rough”. It’s not trail running, I’m able to do 5k pace intervals on the surface and if anything, I think of it as more track-like than pavement.
Has anyone else experienced this wear?
Should I try to return?
Is it risky to wear these in a marathon given the foam already peeking through?