90% Cotton, 10% Polyester Drawstring closure UPF 50 PROTECTION:The sun hat with wide brim ensure you are protected from the sun’s UV rays. Adjustable Drawstring: An adjustable chin strap ensures your hat will not be lost on a windy day. COMFORTABLE: The sun hat with built in mesh is for ventilation even in the hot summer. Breathable, comfortable & durable. Wide Applicable Occasion: Suitable for sun visors, daily wear, sports and outdoors such as Fishing, Hiking, Working Outside, Gardening traveling, Camping, Beaches and more. Portable:Foldable, easy to carry or pack inside your purse, tote or backpack. One Size Fits Most: The circumference is 22.8inch. NPQQUAN 1 & 2 PCS Sun Hat Wide Brim UPF 50+ Fishing & Bucket Beach Hats - BY7IPMP9G