Arai Signet-X Solid HelmetArai Signet X Solid Helmet Built for the street, tuned for real world comfort. The Signet X sets a new standard in quietness, ventilation, and stability. Arai took everything theyve learned from decades of race helmets and fine tuned it for everyday riders. Got a long, narrow head shape? This one's your perfect match. VAS Shield SystemArais Variable Axis System lets the shield pivot lower without messing up the shell shape. Its simple, smooth, and