This character is a Other Symbol and is commonly used, that is, in no specific script. The character is also known as runner, sneaker and tennis shoe.
The glyph is not a composition. Its East Asian Width is wide. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. U+1F45F offers a line break opportunity at its position, except in some numeric contexts.
The CLDR project calls this character “running shoe” for use in screen reading software. It assigns these additional labels, e.g. for search in emoji pickers: athletic, clothing, shoe, sneaker.
This character is designated as an emoji. It will be rendered as colorful emoji on conforming platforms. To reduce it to a monochrome character, you can combine it with Variation Selector-15: 👟︎ See the Emojipedia for more details on this character’s emoji properties.
The Wikipedia has the following information about this codepoint:
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 14 kg (31 lb) 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.