Chin strap: the detachable neck cord will keep hat stay safe on head in wind. It also comes with a decorative button-bow that can be pinned to the hat. Wide brim: this sun hat has a wide brim which is 4" all the way around, the perfect length to shade your face and the back of your neck. Foldablepackable: this summer hat is packable and crushable, will still maintain its shape can be easily carried inside your handbag or beach tote. UPF 50+: this beach hat passed UPF 50+ test.cotton fabric features skin-friendly,comfort,breathable. Two side: you can wear it on another side and it will give you totally different style.