The term athletic shoes is typically used for running in a marathon or half marathon, basketball, and tennis (amongst others) but tends to exclude shoes for sports played on grass such as football (futbol) and rugby, which are generally known as "boots", or in North America as cleats.
Attributes of an athletic shoe include a flexible sole, appropriate tread for the function intended and ability to absorb impact. As the industry and design have expanded, the term "athletic shoes" is based more on the design of the bottom of the shoe than the aesthetics of the top of the shoe. Today's designs even include sandal, mary jane and even elevated styles suitable for running, dancing and jumping.
The shoes themselves are made of flexible compounds, typically featuring a sole made of dense rubber. While the original design was basic, manufacturers have since tailored athletic shoes for the different purposes that they can be used for. A specific example of this is the spiked shoe developed for track running. Many of these shoes are made up to a very large size because of athletes with large feet.
High-end marathon running shoes will often come in different shapes suited to different foot types, gait etc. Generally, these shoes are divided into neutral, overpronation and underpronation (supination) running shoes to fit the respective foot strike of the runners.
