DOX Electric Bike Helmet Men's Motorcycle Scooter Half Helmet 3C Certified Summer Sun Protection Breathable Four Seasons Universal Women's Safety Helmet Skylight [High-Definition Sun Protection Short

High-strength double-layer helmet shell for uniform force distribution, impact and pressure resistance

Wind channel circulation cooling system to keep the rider fresh during long rides

Double-axis adjuster for a customized and snug fit

Ergonomic design for ultra-light, no-feeling wear (~720g) without compromising protection

Seamless wearing experience to avoid stuffiness and stickiness, maintaining dryness and style

Measure head circumference with a soft tape measure passing above the eyebrows and around the most prominent point at the back of the head, including hair, to select the appropriate helmet size within 54-62 cm range

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