FREE SIZE: with an adjustable string at back built-in sweatband. Best fit for 21.6"-22.8" (56-58cm) ,like some "one size fits most" can be
FOLDABLE: This summer hat is packable and crushable, will still maintain its shape & can be easily carried inside your handbag or beach tote
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
SPF 50+: this sun hat has passed UPF 50+ test, large enough to shade forehead, eyes and cheeks from sun uv ray.The detachable neck cord will keep hat stay safe on head in wind.Perfect as Sun/Summer/Beach/Fishing and Travel hats