This Ian Somerhalder foto contains
schipper, leghorn, panama, hoed, zeeman, skimmer, strooien hoed, livorno, panama hoed, matroos, and stro hoed.
There might also be
fedora, vilten hoed, homburg, cowboyhoed, trilby, fedora met vilten hoed, stetson, merg hoed, merg helm, zon helm, tropenhelm, topi, merg hoed met merg helm, and topee.