bucket hat

US /ˈbʌk.ɪt ˌhæt/
UK /ˈbʌk.ɪt ˌhæt/
"bucket hat" picture
1.

a soft hat with a narrow, sloping brim all the way around, typically made of cotton or canvas

:
He wore a denim bucket hat to protect himself from the sun.
The fashion trend of the 90s saw a resurgence of the bucket hat.