Clarks Springers 6.5 M Brown & Baby Blue Leather Low Top Walking Shoes. I have had these sitting in my closet for years, but only worn them five, or so, times.  The outer of the shoes and soles are basically still brand new, however the inner lining is starting to crumble from age.  It is only the top 1/2" of the inside.  Shouldn't affect the functionality of the shoe and isn't visible from the outside.