Latex is a chemical substance which is used to create rubber.
Natural Latex is obtained from the sap of certain plants and can be later vulcanized and finished into a variety of products.
Latex materials are known to have many applications especially in the footwear industry where they can be used to make shoe insoles and outsoles to add flexibility and extra cushioning.
About Sneakers:
Footwear made of flexible material, typically featuring a sole made of rubber. Sneakers were originally sporting apparel, but are today worn much more widely as casual footwear.