The style of this 'step on' shoe can easily be modified simply by changing the way your feet are in the shoe. 

When people are at work they need to wear  closed formal  shoes  although they always  like to wear  a  pair  of open shoes to relax  during work or after work. The problem  is  carrying  extra shoes is not convenient. This design combines  four types of shoes in one.  Depending on  users' needs, the shoes can be transformed  simply  by  stepping  on  the  upper  or  the  heel  without  adding  or removing any parts. By stepping on the upper, they become sandals. While stepping on both heel and upper, they become slippers. The  upper material is textilene  fabric, which includes the features of anti-dust and  ventilation. As a result, it allows the wearer to feel free and  comfortable.