I no longer plan to use this, so it's only been tried on. The chin strap is removable. It seems convenient to use because it has memory wire. It's stored folded as shown in the third photo. Immediate purchase is OK. No price reduction or holds. ♡ I will fold it up small and ship it. The following is the product description from the HP: Material Composition: 100% Polyester Care Instructions: Hand Wash Only Closure Type: Drawcord Fit Type: Adjustable ~About this product~ 【Comfortable to Wear】: Head circumference: 55-59cm, adjustable. The women's hat is made of soft cotton material, is lightweight, and doesn't put any burden on the head. 【UV Protection】: The women's hat has a UV protection index of UPF50+ and blocks strong sunlight in spring and summer, protecting the eyes and skin. The wide brim covers even the nape of the neck, providing high UV and UV protection. 【Won't Blow Away in the Wind】: The women's hat comes with a special chin strap, so the hat won't blow away even on windy days like when cycling or mountain climbing, making it a UV-cut hat that can be used with peace of mind. 【Excellent Face-Slimming Effect】: The large brim covers the face, making any face shape look slimmer. This hat, called an actress hat, provides excellent protection from UV rays with its large brim that covers the face. This hat is very easy to match and is recommended as a gift for women who want to have one during the season when the sun is a concern. 【Convenient to Carry】: Hand washable, removable chin strap, foldable and easy to carry, a design with excellent functionality! This women's hat is perfect for various occasions, such as daily commuting, sports meets, mountain climbing, amusement parks, gardening, picnics, excursions, travel, walks, swimming at the beach, walking, and trekking.