I've been a re-rider for a little over a year now (working on jumping). I've been riding in inexpensive starter gear, including Ariat All Around Chap III leather/suede half chaps. Yesterday, I noticed that the inside suede patches are starting to become worn smooth and shiny. As a teen rider, I always wore tall boots, so I'm not sure what counts as normal wear and tear on half chaps. What things indicate that they're getting worn out and need to be replaced?