This Wicked foto contains
fedora, cappello di feltro, homburg, stetson, stetson trilby, scatto bordo del cappello, and cappello di snap.
There might also be
cappello campagna, cappellone, beaver, di ricino, castoro, castor, paglietta, livorno, panama, cappello panama, marinaio, skimmer, il cappello di paglia, and cappello di paglia.
Dianne Pilkington discusses her costume changes in playing Glinda the good witch in Wicked. This involves nine costume changes, but only seven actual different costumes. V&A Theatre & Performance Dept.