1. Product name: adult and children's outdoor sports and cycling helmets
2. Material: high-density EPS shell ABS external ABS and internal EPS conformal non integrated helmet has the ability to absorb impact and reduce impact force.
3. Head circumference: S=48-56cm/18.89*22.04in (children aged 3-8 years), M=52-58cm/ 20.47*22.83in(adolescents aged 9-15 years), L=56-61cm/ 22.04*24.01in(adult men and women)
4. Product weight: single product weight S=281g M=322g L=374g (manual measurement, there will be errors)
5. Number of ventilation holes on helmet top: 11
6. Regulator system: light and snug, with adjuster knob, it is easy to adjust the size of head circumference
7. Inner cushion: The thickened inner cushion belt can be disassembled and cleaned. The inner cushion (cushion cushion) can contact with the head to increase comfort

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