Safety protection: Shinmax bike helmets with durable polycarbonate shell and EPS foam help slow down impact and provide your head with maximum protection and comfort in all directions during impact. Adjustable size and quick release system: the cycling helmet can be adjusted to fit different head circumferences from 22.05 to 24.41 inches (22.0 in-24.4 in) for both adult men and women. Both the rear adjuster and side straps are adjustable. The quick release buckle makes the cycling helmet easier to put on or take off your adult bike helmet. Detachable magnetic glasses: unique magnetic visor design can be used as sunglasses, not only protect your face from wind and sand, but also block strong ultraviolet light, UV400 protection. Bike helmet with 3 strong magnets, makes the shield of the glasses can be rotated up or down. Ventilation with 7 holes: aerodynamic design, adult helmet with special aerodynamic design and 7 breathable vets, effectively reduce air resistance and reduce sweating. Super lightweight 10.93 oz (0.68 lbs) bike helmet that no more burden, keep cool and comfortable. Gifts for adults: adult bike helmet is protective and ideal for urban commuting, cycling, skating; also suitable for city, road, electric, trek bike, etc.
