The vast majority of the exercise I get is in the form of six to eight mile walks at four mph, mostly in the vicinity of my neighborhood and along a hike and bike trail that's about two miles from my home. First I wore out a pair of Saucony running shoes and now one of the New Balance 641 walking shoes is starting to come apart on the inside near the heel long before any of the outside part shows any signs of wear. The New Balance shoes are much more comfortable for walking so I'm convinced there is something to be said for buying shoes designed for walking as opposed to those labeled for running, cross training, etc. Does anyone know if there's really a difference? Living in Houston I need shoes that are well ventilated. I don't really care for the white athletic looking shoes which are so prevalent but could live with that if the shoes are great and durable. I generally shop for shoes at Academy and Sports Authority (formerly Oshburns here). Any suggestions re good walking shoes or where to look for them are welcome.