This is a denim bell hat from Stussy. It's a patchwork denim design. This style, with its patchwork denim, is popular, with rappers like 13ell (though from a different brand) also wearing similar hats. It's likely old Stussy. I believe it's from the 80s or 90s, but the details are unknown. It has been stored at home and is in good condition with little use. You're unlikely to see anyone else wearing this, and I don't think you'll find it for sale often. I think it's quite rare. I usually wear a New Era size 7 3/8, and this hat fits similarly, or perhaps a little more loosely, so I think it's around 59cm.