WHAT IS SNEAKER ?

According to Google dictionary, Sneaker is a soft shoe with a rubber sole  womccfor sport or casual occasions. But i think sneaker/sneakers is a shoes that you can wear for sport, casual and sometimes high fashion. Some sneakers bring history. Like maybe Michael Jordan wears a shoes, and he give it to a man, and that man sold that shoes to local shoe store. That sneaker will be cost a thousand dollar. If Michael Jordan sign that shoes, it will be cost more than one cheap car. Sneakerhead will be call it "Grail" it's just because have a great history. But to my self and allot sneakerhead tip to buy sneakers is " COMFORT is KEY".