Z-CoiL shoes are called "The pain relief footwear" for a reason. They work. When fitted properly they reduce the impact of the hard surface up to 50% whether walking, standing or running. They are great to save wear and tear on your feet, knees, hips and back even if you have not developed physical problems yet. They reduce the pain when there is a physical problem and often give the body a chance to heal from some of these maladies because of the reduction of impact. They are the greatest ergonomic invention since man invented hard, flat surfaces that today’s society spends most of their time on. Our bodies were not designed to endure such abuse. However, there are some things you should know about the special fitting that is required when purchasing Z-Coil shoes. This is not like a regular shoe you purchase in Anystore, America. A fitting is required when purchasing them new because the shoe is outfitted to your body; to your height, your stride and not only your weight, but also how you carry your weight. Every body is a little different and the fitting identifies your posture on the shoe to alleviate stress points in your body. The widening and narrowing as well as the necessary under the foot adjustments are also a part of this fitting, plus the good old fashioned stretching in area’s your foot may differ from the shape of someone else's foot with the same size shoe. Once you purchase your shoe you will want to get a fitting from a qualified dealer, the fitting is free, however, you may have to invest in different coils and that could be an expense of about $40 to $55 for new coils. You may also consider a tip to the fitter for being so kind to you to fit your shoe without making a sale. When Z-Coil shoes fit you well you will not again consider the price as the shoe has no planned obsolescense in it and it will last a long time comfortably. You will get a lot of wear out of it and save a lot of distress. I have worn Z-Coil shoes now for about 7 or 8 years. They are fantastic and at 62 years of age I am still keeping up with the best of them whether hiking the hills or on vacation in New York, Disneyworld, or just a full day of shopping; a fair or the museum or zoo. I am always so much less tired than my companions that do not wear Z-Coil. However, I have had my shoes fitted each time I buy them and I get tune-ups occasionally to insure the fit is working best for me.