girl in a running pose with empty race number sign on her sports-top in studio

startingnumber competition sportswear background schoolgirl racenumber sportstop athletics hairstyle sportsbra undefined copyspace textspace training isolated starting athletic clothing longhair marathon ponytail teenager running teenage smiling abdomen athlete fitness jogging number studio pretty sporty posing briefs sports jogger muscle runner empty white black poses happy adult belly blond sport thigh youth blank space girl pose race sign slim pink hair limb neck teen wear top arm fun gym