Desi Arnaz - Straw Hat song A scene from I Love Lucy (episode: 'Men Are Messy'). Ricky does a rehearsal number with Maggie, the cleaning lady.
I believe this is a "pork pie" hat... It sure is cute, whatever it is. "The first hat to be called a pork pie was a hat worn primarily by British and American women from around 1830 through to about 1865." "Ladies pork pie hats consisted of a small round hat with a narrow curled-up brim, a low flat or slightly domed crown with a crease running around the inside top edge, and usually with a ribbon or hatband fastened around the shoulder where the crown joined the brim. "Such hats might be made of any number of materials (straw, felt, cotton canvas covered in silk, etc.)—what made them "pork pies" was the shape and crease of the crown and the narrowness of the brim (sometimes called a "stingy brim" in reference to its brevity)."
This is the closest I could find to what my favorite beach hat used to look like....the one that was snatched by one of my granddaughters somewhere along the beach trip years.