MOUNTAIN BIKE HELMET FOR KIDS & TEENS: Built tough for trail riding, this youth MTB helmet features a durable polycarbonate shell with EPS foam liner for reliable protection. CPSC certified. 16 VENTS + COOLING CHANNELS FOR ALL-DAY COMFORT: Advanced ventilation system with 14 strategically placed vents and interior air channels keeps young riders cool. Moisture-wicking soft padding. ADJUSTABLE DIAL FIT SYSTEM GROWS WITH YOUR CHILD: ErgoKnob dial-fit adjustment and customizable nylon straps ensure a secure, personalized fit. Easy one-hand adjustment kids can do themselves. REMOVABLE FULL-COVERAGE VISOR FOR TRAIL PROTECTION: 3-position adjustable visor shields eyes from sun, branches, and debris. Easily removable for different riding styles. Perfect for MTB & BMX. CPSC CERTIFIED SAFETY: Meets U.S. CPSC Safety Standard for kids bike helmets ages 5+; reflective straps enhance visibility for safer rides on trails and streets