Outsole is a term used to describe the bottom part of a sneaker. This is the part of the sneaker that comes in contact with the ground, and it is usually made from a material that is designed to provide traction and durability. The outsole of a sneaker can have a big effect on its performance, as it is designed to provide grip and stability for the wearer.
Outsole materials can vary greatly, from rubber to carbon fiber, and can be tailored for specific activities such as running, basketball, or skateboarding. The design of the outsole can also vary, with some featuring a herringbone pattern for added traction and others featuring a waffle pattern for added durability. The outsole is also responsible for protecting the midsole and upper of the sneaker from wear and tear, making it an important component in the overall longevity of a sneaker.
It's also important to note that outsole can also be replaced with aftermarket sole replacements that can be found in the market, it's called "sole swaps" and a common practice among sneakerheads to give their shoes a new look.