The PICCHU children's helmet is designed for rock climbing and cycling. It is very light and comfortable and constructed for durability. A sheet of retro-reflective stickers allows the helmet to be personalized while enhancing visibility.Features Multi-use, multi-standard helmet: Climbing (CE EN 12492, UIAA) European cycling (CE EN 1078) United States cycling (CPSC safety standard - cycling helmets for children 5 and older) Durable construction and made for children: Specifically sized for children between the ages of 3 and 8 (48-54 cm headband) Carries Petzl's TOP AND SIDE PROTECTION product label Head-covering design for reinforced protection against lateral, front and rear impactdurable ABS shell and expanded polystyrene liner Sheet of retro-reflective stickers allows the helmet to be personalized, while enhancing visibility Comfort: Side openings for ventilation Adjustable chinstrap, nape height and headband for a comfortable fit Narrow polyester webbing straps offer improved comfort Headlamp can be attached using the four optimally placed clips Foam is removable and washable Specs Material(s): ABS shell and expanded polystyrene liner Certification(s): CE EN 12492, UIAA, CE EN 1078, CPSC safety standard one size not compatible with VIZION eye shield Weight: 310 g Head circumference min. 48 Head circumference max. 54 cm