[Material:] Soft straw fabric braided, it is breathable and comfortable to wear. The UPF of this sun hat is 50+ , can protect your head,face,neck and shoulder from sunshine. [Size :] One size fits most . Height (above top of brim) is 4.3(11cm), Brim width is 5.9(15cm), Hat circumference is 21.7-22.8(55-58cm), Inside circumference measures is 20.9??-22.8????53-58cm??. [Foldable and Portable:] High quality materials and craftsmanship sun hat can be foldable and packable ,it is easy to carry and occupy your smallest space in travel. [Adjustable: ]This straw hat has a adjustable elastic band built inside ??the sweatband to keep you dry effectively in summer and it’s easy to adjust the size. [Occasions :] The gemstones come on a string (band) that you can put on the hat. So the choice to wear the gemstones is up to you. A perfect accessory for any outfit,Great for travel, beach, casual wear, hiking, camping and some other outdoor activities.