Sneakers

Sneakers (US) or trainers (UK), also known by a wide variety of other names, are shoes primarily designed for sports or other forms of physical exercise but which are also widely used for everyday casual wear. Since their popularization by companies such as Converse, Nike and Spalding in the mid 20th century, they have become attire, with variety growing in many global markets exponentially. Like other parts of the global clothing industry, shoe manufacturing is heavily concentrated in Asia with nine in ten shoes produced there. Contemporary sneakers are largely made from synthetic materials, and the materials and manufacturing process produce, on average, about of CO2 emissions. Some companies are trying to substitute more sustainable materials in their manufacture. About 90% of shoes end up in landfills at end of life. Sneakers have gone by a variety of names, depending on geography and changing over the decades. The broader category inclusive of sneakers is athletic shoes. The term 'athletic shoes' is typically used for shoes utilized for jogging or road running and indoor sports such as basketball, but tends to exclude shoes for sports played on grass such as association football and rugby football, which are generally known in North America as "cleats" and in British English as "boots" or "studs". The word "sneaker" is often attributed to American Henry Nelson McKinney, who was an advertising agent for N. W. Ayer & Son. In 1917, he used the term because the rubber sole made the shoe's wearer stealthy. The word was already in use at least as early as 1887, when the Boston Journal made reference to "sneakers" as "the name boys give to tennis shoes." The name "sneakers" originally referred to how quiet the rubber soles were on the ground, in contrast to noisy standard hard leather sole dress shoes. Someone wearing sneakers could "sneak up", while someone wearing standards could not. Earlier, the name "sneaks" had been used by prison inmates to refer to warders because of the rubber-soled shoes they wore.