Check out top-selling men's designer baseball, dress, ivy & flat, beanies, fedoras, ascot, trilby, berets, bucket, derby, bowler, Panama, and straw hats. ON is a rapidly emerging clothing and footwear brand that caters to men and women. The brand has its roots in Switzerland, headquartered in Zürich. Many times, it is also called by the name, ON Running. Gray is the color of intellect, wisdom, and knowledge.