PREMIUM PROTECTION: Durable PC shell and impact-absorbing EPS foam provide reliable protection for cycling and skating. 11 AIR VENTS: Promotes airflow to keep kids cool and comfortable during activities. COMFORTABLE DESIGN: Removable padding and chin pad allow easy cleaning, while the visor helps shield the eyes from sunlight. ADJUSTABLE FIT: A rear adjustment dial and quick-release buckle provide a secure, customized fit.