-Fabric: Polyester, comfortable and close to the skin, with strong air permeability-7.5cm brim length-55-60cm cap circumference-Cap circumference of stitched mesh-Design of copper metal air holes on both sides-Rear head circumference adjusting buckle-Cotton sweat band for sweat absorption and ventilation-Adjustable windproof rope-Smooth routing and fine workmanship-Suitable for outdoor hiking, fishing and tourism ZITIQUE Sunscreen and breathable fisherman cap