Description:Protection: This helmet offers comprehensive protection, made from high strength materials that provide great impact and shock resistance, ensuring effective safe while riding.Lens Design: The helmet features a double lens design that can be adjusted to adapt to different light conditions, providing a clearer view and more comfortable riding experience.Ventilation: Scientifically designed ventilation holes effectively dissipate sweat and keep the head and dry, enhancing comfort and reducing discomfort during rides. this helmet uses materials and structures making it ideal for use in spring, summer, autumn, and winter.Comfortable Fit: Ergonomically designed with adjustable inner padding for a comfortable fit to the head, reduces pressure on the neck and head so you not easily fatigue even after long periods of riding.Lightweight & Portable: Its overall lightweight design makes it convenient to carry without adding burden during rides, suitable for long distance travel or daily commuting.Size Chart:Suitable for head circumference 55cm-56cm/21.65inch-22.05inchPackage Includes:1Motorcycle Full Face HelmetNote:Please allow slightly errors 1-2cm differences due to manual measurement.