Details Perfect for toddlers on the move, the Specialized Mio helmet features bold graphics, a simple and secure buckle, and the Headset SC fit system for an easy, secure fit. Construction In-molded shell improves strength and reduces weight Fit Headset SC fit system with toddler-oriented sizing that's designed for an easy and accurate fit Standard buckle design Ventilation 4th Dimension Cooling system optimizes ventilation Front mesh-covered vents to keep out bugs Details Tri-Fix web splitter for improved comfort and ease of strap adjustments Reflective webbing for increased visibility in low-light conditions Integrated visor/sun brim provides shelter from sunlight Shape designed to accommodate child trailer use Toddler size, approximately up to age three Specialized Mio Standard Buckle Toddler Helmet