1. Meticulous stitching, not easy to open the thread, highlighting the quality 2. The built-in adjustment rope can adjust the size of the hat, which can be worn by more people with head size 3. Breathable mesh design, sunscreen and sunshade in summer without stuffy head 4. 4 colors are available to meet different preferences 5. Material: Polyester 6. Cap circumference: average size is about 56-58cm, large size is about 59-60cm (adjustable) 7. Brim: about 5cm 8. Brim style: short brim 9. Net weight: about 81g