The brim has a wire in it. You can shape the brim to your liking. This is a wide-brimmed hat that can be folded. A "free size" sticker was attached at the time of purchase. You can adjust the size by pulling the inner string. Material is unknown. Used once for a day trip. Hand-washed with delicate laundry detergent. The large brim covers your face. For those looking for a black hat. Will be folded and sent. Please smooth out any creases upon arrival. *The floor has been disinfected before taking photos. #Gardening #SportsDay #SunProtection #FieldWork #BlackHat #SunShade #Disguise #FaceCovering #Outdoor #Hiking #Excursion #Barbecue #BucketHat #ConcealingBareFace #FoldableHat #HatThatFitsInABag #ShoppingHat #MercariHalloween