Features: Improved Visibility for Sun Protection: Utilizing bright yellow and vivid color shades with reflective elements, this headgear increases visibility during daylight and nighttime, offering sun protection and outdoor safety, suitable for low lighting and challenging conditions. Lightweight and Ventilated Design: Constructed with polyester flat fabric and mesh, the two-layer design ensures a lightweight and ventilated feel, keeping you cool and comfortable even in warm weather, ideal for extended outdoor use. Wide Range of Applications: Suitable for biking, fishing, construction tasks, hiking, and other outdoor activities, the sun guard blocks sunlight while reflective detail improve safety in low light, providing flexible protection in various situations. Adjustable Fit: Designed with stretch to accommodate head sizes of 55-60cm, this unisex headgear offers a secure and comfortable fit, staying in place without causing discomfort, ensuring a customized and snug experience. Trendy Color Option: Available in 5 stylish shades—this headgear combines practicality with style, making it a functional outdoor accessory for diverse fashion preferences. Specifications: Component: Polyester Hat Circumference: About.55-60cm/21.65-23.62inch Size 1: About.25cm/9.84inch Size 2: About.35cm/13.78inch Color: 5 Option Quantity: 1 Pc Package Includes: 1 Pc Neck Cover for Helmet note: 1.Please allow 1-2cm errors due to manual measurement, note that you do not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color of the item.