What are tennis shoes?
Tennis shoes are more flat and have a different sort of grip on the bottom of the shoe specifically designed to grip a tennis court. Unfortunately for you, Nike Shox are not a form of tennis shoe, and if you continue to use them they will eventually start to fall apart due to wear and tear. If you go to any sporting goods store that sells shoes, they usually have a section just for tennis shoes. Some pairs are as cheap as thirty dollars, but they do not come with a warranty and tend to wear out more easily. I suggest getting either Adidas or Nike brand tennis shoes, which are a bit more expensive but come with a warranty so that if you wear them out the company will send you a new pair. So look at the price of the shoes as if you are paying for two pairs. I hope this was helpful to you. (P.S. Adidas tends to usually make heavier shoes than Nike, so decide between the two by establishing if you would prefer heavy or light shoes.