These Bell Racing M.4 helmets are aggressively styled, multi-featured helmets that can be used in all forms of racing and have the largest size range available of any Bell Racing helmets. They use a lightweight composite shell and a large eyeport, making them a great choice for racers who wear eyeglasses or those who prefer a wide field of vision. The helmets feature a comfortable interior fit, maximum ventilation with a full chin bar, forehead and top vents, a Nomex interior liner, and current Snell SA 2010 SFI certification. Bell Racing M.4 helmets include a clear 281 SRV shield with a Bell visor strip as standard equipment. Their newly designed face piece features recessed areas that allow for seamless radio integration and an easy installation. The helmets are available in a white or rubberized matte black finish. The unique rubberized finish is more resistant to fingerprints and smudges than traditional flat or matte finishes. The M.4 helmets are predrilled for use with head and neck restraint systems.