Foam soles are a type of footwear cushioning made from lightweight foam materials. They provide comfort and support by absorbing impact, making them popular in various types of shoes, including athletic footwear and casual sneakers. The foam can vary in density and thickness, affecting the overall feel and performance of the shoe. These soles are often designed to enhance energy return, which helps reduce fatigue during activities like running or walking. Many brands, such as Nike and Adidas, incorporate foam technology into their products to improve user experience and promote better foot health.