"Sneakers" is a term primarily used in North America and Australia to refer to athletic shoes with a flexible sole made of rubber or synthetic material and an upper part made of leather, synthetic substitutes, or cloth. They are typically worn for sports or casual occasions. The term "sneakers" originally referred to how quiet the rubber soles were compared to other types of shoes, allowing wearers to "sneak" around quietly. Today, sneakers have become a fashion staple and are worn by people of all ages for both athletic activities and everyday wear.