This Park Jung Min foto contains
filzhut, homburg, stetson, trilby, fedora, and stetson trilby.
There might also be
boater, leghorn, panama, panamahut, seemann, skimmer, hut stroh, bootsfahrer, bein, strohhut, livorno, panama-hut, kampagne hut, kampagnenhut, porkpie, and porkpie hut.