dont know how long cuz i get them from garage sales.
I will add, that you shouldn't leave your shoes in your trunk either, especially if in a warmer climate. They can "half life" your shoes pretty quickly.
I have two or three pairs of golf shoes, rotate them and always use wood shoe horns.
Mostly purchase Footjoys due to extra wide width.
Shoes last about 12 months as I walk about 200 to 225 rounds a year.
Another web site said that athletic shoes should last 200 to 500 miles depending on the use.
I only wear each pairs of my golf shoes 2-3 times tops before new pairs coming in so I still have shoes from 5, 6 seasons ago that look brand new. /pardon.gif' class='bbc_emoticon' alt=':pardon:' /> I do take out all the spikes and clean with a tooth brush after each round of golf or driving range sessions so that helps make it look new as well.