Features: Elegant design, High strength ABS plastic shell, lightweight and impact resistance and exquisite manufacturing Universal size with adjustable lynon chin strap shield your head from sunshine and rain The liner is high level warm fabrics, and with high density foam cushioning layer. It feels soft and comfortable Specification: Name: Motorcycle Bike Scooter Half Helmet Shell Material: ABS Liner Material: Polyester Colour: As picture Gender: Unisex Size:M,L, XL Suitable for head circumference： M:57-58CM L:59-60CM XL:61-62CM Package included: 1 x Half Helmet Note: Instruction is not included. Please allow a slight error due to manual measurements, thank you! Please check size.Thank you.