The outsole, which is usually made of rubber or synthetic material, provides traction for the shoe.
This is essential as every basketball player will need to pivot, crossover, or even jump without slipping during the game.
Some outsoles will also feature tread patterns that are multidirectional for additional grip.
However, it is also important to consider whether you will be playing indoors or outdoors.
Most basketball shoes are made for indoor play. So if you intend to use it outdoors, find soles that are harder and thicker so that they are durable against the rough courts.