wearing a black uniform with a white hat holding a whistle wearing protective gear such as shin guards or chest protectors holding a signaling indicator such as a flag or a handkerchief carrying books and/or a clipboard wearing a mask wearing a protective mask over their face
umpire which has wearing a black uniform with a white hat umpire which has holding a whistle umpire which has wearing protective gear such as shin guards or chest protectors umpire which has holding a signaling indicator such as a flag or a handkerchief umpire which has carrying books and/or a clipboard umpire which has wearing a mask umpire which has wearing a protective mask over their face