Exercise has not been my strongest point.  When I first saw this type of shoes I wanted to have one but  was put off by the unusual design.  I am happy to note that the design has evolved.  So when I saw the special deal in Amazon, I did not have second thoughts but placed my order right away.  I have been wearing it for about 3 weeks now and I do not have what other people experienced in their first few days of wearing the shoes.  The more I am wearing it, the more I am loving it.