Description: - 【Lightweight and Ventilated】: The bike helmet is designed with a lightweight body and ventilation holes, providing breathability and coolness. It also features a comfortable chin strap for stable wear - 【Adjustable Head Circumference】: With an adjustable strap, this bicycle helmet comfortably fits head circumferences between 54 cm-61 cm/21.26 inch-24.02 inch - 【Material】: Made from ABS material with an EPS layer, the helmet is strong, impact resistant, and not afraid of bumps or knocks. The thickened EPS layer enhances shock absorption capabilities - 【Detachable Design】: The cycling helmet's design allows for easy disassembly and cleaning - 【Multifunctional Use】: Whether you're road cycling, mountain biking or commuting daily, this bicycle helmet is the ideal choice for all types of riding. It's great for outdoor cycling or use with motorcycles and electric bike Specification: - Material: ABS EPS Size Chart: Head Circumference 54cm-61cm/21.26inch-24.02inch Package Includes: 1 Bike Helmet Note: Please allow slightly errors 1-2cm differences due to manual measurement.