EXO-ST1400 Carbon HelmetBy combining state of the art engineering, manufacturing, and materials into a sleek aerodynamic chassis, the EXO ST1400 is one of the lightest helmets in its class, weighing in at 1,383 grams (3. 05 lbs). The ST1400 also offers the ride specific versatility of an integrated SpeedView Sun Visor, AirFit custom inflation system, Comm Ready convenience, and Aero Tuned Ventilation. Shell: Resin infused TCT U 3K carbon fiber shell composite weave provides