A weight class is a measurement weight range for boxers. The lower limit of a weight class is equal to the upper weight limit of the class below it. The top class, with no upper limit, is called heavyweight in professional boxing and super . lb / kg / 9 st 4 · , Super featherweight, Super featherweight, Junior The weigh-in · History · Professional boxing · Amateur boxing. Boxer Lb for Lb Ratings 29, super lightweight, orthodox. Omaha, Nebraska, USA. super lightweight - 29, super featherweight, southpaw. Oxnard, California. This is a list of Super featherweight boxing champions, as recognized by boxing organizations: The World Boxing Association (WBA), established in as the.