Adjustable Summer Hat: Adjustable head circumference about 21"–23" to fit your head size; It is also suitable to wear even with various hair styles. With this topless ponytail straw sun visor, it is easy to throw your hair in a messy bun or ponytail, no more muss of your hairdo. Ladies’ Portable Hat: This foldable straw sun hat features a rolling function, offering great convenience. It can be folded for storage or carried during travel, easily fitting into bags or suitcases, and still maintains its shape every time it’s taken out. The best-matched summer accessory: The headband is made of 100% cotton, and the brim is made of 100% polyester. This open-top straw hat is lightweight and easy to wear, with a UPF rating of 50+. It is an ideal choice for occasions such as the swimming pool, cruise ships, boating, golfing, running, backyard barbecue parties, traveling, sightseeing, walking the dog, jogging, etc.