CE Safety Standards: This fashion bicycle helmet is made of high-quality ABS hard shell and EVA buffer layer material, providing high strength, excellent impact resistance, and shock-absorbing protection for cycling. Hat Style Helmet: The hat-style helmet for women features a wide brim design that offers effective sun protection during hot summer days. Ventilation and Comfort: This cycling helmet includes ventilation ports for improved airflow, making it lightweight, breathable, and comfortable for extended wear. Adjustable Fit: Designed with an adjustable chin strap, this adult bike helmet fits head circumferences from 58cm to 60cm (22.83 to 23.62 inches), allowing easy adjustment for a secure fit. Wide Range of Use: This stylish bicycle helmet is suitable for daily use, commuting to school or work, outdoor travel, cycling, biking, and riding. It also makes a great gift for outdoor enthusiasts. Specifications: Material: ABS, EVA, Cotton Size Chart: Adjustable Head Circumference: 58cm60cm / 22.83in23.62in Hat Depth: 10cm / 3.94in Hat Brim: 8.5cm / 3.35in Back Brim: 5.5cm / 2.17in Package Includes: 1 x Surf Bucket Hat 1 x Hard Shell Note: Please allow slight variations due to manual measurement and differences in display monitors.