I read somewhere that leathers lose a significant portion of their protective strength as they repeatedly get wet then dry. Add salt from sweat and road grime and you've got something that really accelerates this.
What can you do to prevent this from happening?
Every saint has a past and every sinner has a future.
If, after I depart this vale, you ever remember me and have thought to please my ghost, forgive some sinner and wink your eye at some homely girl.