Sarah Smith is a 26-year - old ` ` wingsuit flier '' She is the only female competitor in the World Flying League . She flies at up to speed , wearing just a synthetic ` ` suit '' The sport is one of the most dangerous in the world .
Ellen Brennan is a 26-year-old `` wingsuit flier '' She is the only female competitor in the World Wingsuit League . She flies at up to 200kph , wearing just a synthetic `` wingsuit '' The sport is one of the most dangerous in the world .