4Tress carbon weave, Sculpted neck roll reduces jacket/suit interference, Five-piece modular liner with moisture-wicking Hydradry, Linear ported forehead vents, Low-profile vents throughout the shell, Fog-free ICON Optics Shield with Rapid-Release system, Prolock positive shield locking system, Removable breath deflector and chin curtain, Includes Clear ICON Optics Shield RST Red Tracshield