I started having pain in my arches and heels at the end of the day from just regular activities.  I purchased MBT walkings shoes, marveled at having no pain but felt I couldn't wear sneakers for all occasions.  I bought this style to wear with slacks, jeans, shorts etc.  They feel so good...no more pain... I wear them all the time, especially if I know I'll be on my feet for quite a while.