German Alpine Hat Adult Celebrate Oktoberfest with German Style! Make sure all your guests have Oktoberfest costumes and are fit for an Oktoberfest party in Munich. Approximately 23" circumference around inside of hat. Grey hat with black, red and yellow rope hatbands. Feather in hatband. Oktoberfest party favors, supplies and decorations are just what you need to get your Oktoberfest party started. Available size: One size fits most