I am in need of new shoes to use for everyday wear and walking long distances. I will sometimes walk up to seven miles on concrete and pavement. I want to get a good pair of shoes that I will not have to replace anytime soon. I plan on buying the Merrell Chameleon Stretch 4 Waterproof shoes. Will they work for what I want to do? At a later date, I plan on buying a pair of dedicated exercise shoes but I need these to work for the time being.