Method of conducting business including making and selling a custom article of footwear

摘要: The article of footwear taught in the present invention includes a spring element that can provide improved cushioning, stability, and running economy. Unlike conventional foam materials presently being used by industry, preferred is not substantially subject to compression set degradation relatively long service life. components including upper, insole, element, sole be selected from range options, easily removed replaced, as desired. Moreover, teaches method making customized footwear, also way doing retail Internet business.