The youth anon. Define helmet features Endura-Shell construction for long-lasting durability and strength. A 180° Boa® Fit System provides easy, on-the-go fit adjustment with the turn of a dial and passive ventilation keeps goggles clear and maintains a balanced temperature all day long. Strapper-Keeper technology incorporates the goggle right into the helmet for perfect on-the-face placement, and the ultimate in helmet-goggle integration. Includes microfleece tote bag.