Headset SC fit system, scaled for child-sized helmets w/ a large external adjustment knob. Tri-Fix web splitter for improved comfort and ease of strap adjustments. In-molded shell improves strength and reduces weight. Reflective webbing for added nighttime visibility. Integrated visor/sun brim provides shelter from sunlight. Front mesh-covered vents to keep out bugs. Toddler size is shape designed to accommodate child trailer use. Toddler and kid sizes, approximately ages 3 and up. Complies with one or more of the following safety standards for bicycle helmets: CPSC, SNELL B90A, CE and AS/NZS.