1. 360 Protection & Detachable: This sun hat combined with wide brim, face & neck flap (flap are removable) Which can keep the sun off your head, face and neck. adjustable chin strap to ensure that the hat can maintain comfortable conditions even in strong winds. 2. Breathable: There are ventilation mesh holes on the top of the hat and the front of the neck flap. Can increase air circulation, keep you cool and breathable. Best partner for various outdoor activities.Fabric: Made of waterproof nylon fabric and polyester net mesh, easy to clean, breathable, quick-drying, wear-resistant, lightweight and comfortable wear. 3. Size: Unisex design, suitable for head circumference around 22 - 24 inches/56-61cm. Hat brim width: 3.7inches. sun hat is only 3.6oz, this weight is very comfortable to wear. can be easily folded and packed well. 4. Perfect for any outdoor activities: fishing, hiking, camping, hunting, gardening, cycling, climbing, boating etc. If there is any issues about hat product, please inform us at any time for after sales service and we will follow up closely.