Shishian Helmet Electric Motorcycle Unisex Summer Motorbike Battery Scooter Safety Helmet Lightweight Ultra-Light 3C Certified No Visor Class A Sakura Pink Medium 54-58cm Head Circumference

Serrated adjuster tested for 3000 adjustment cycles with strong damping feedback for precise fit control

Velcro sponge pads enhance skin comfort at contact points

Shell and inner lining fit tightly with rock-solid quality, no cheap creaking or discomfort when squeezed

Lightweight and portable, weighs approximately 450g (±50g) for medium size, 490g (±50g) for large size

Measure around the head starting from the brow bone (highest point of forehead), passing over the temples, and around the occipital bone (lowest point at back of head)

Suitable for spring, summer, and autumn

Modern, simple, and elegant style