The ezWalker,™ Sport/Casual designed for men or women, is ultra thin, 3/4 length and will fit in full foot athletic and/or casual shoes with ease. The ezWalker™ Sport/Casual can be placed under the existing removable insole of the shoes for a support base unlike any other custom orthotic on the web. If the existing insole is not removable, simply place your ezWalker™ directly in the shoe adding custom support and comfort in an instant. If you have a backless casual or athletic shoe, such as in the case of a clog style, it will be necessary to place a small piece of Velcro, a dot of sticky tack, or a dab of rubber cement between the shoe and the arch support for a secure fit. Do not use permanent glue if you want to use your ezWalker™ in other shoes. It is important to understand the fundamentals of proper shoe fit to make your ezWalker™ feel great. Have your fit checked regularly and understand the size on the measuring device is only a reference. Mass manufactured shoes are NOT all created equal. Refer to the Shoe Fitting Reference Guide for proper guidelines on how to best fit your shoes. Remember: "When your feet feel good you feel good."