Good question! Definitely Durable! (hey that would make a cool bumper sticker)
I am such a slow runner. I have aspirations of being able to run faster than a 10-minute mile. That’s elite for me! So, being truly elite quality is no where in my future, but that’s perfectly ok with me. I love running, and I want to treat my body in such a way that I will be running 50 years from now, maybe even w/ my great grandkids!! Would that not be cool?