Advanced Polycarbonate Composite Shell (ACS): Lightweight, superior fit and enhanced comfort "ACS" Advanced Channeling Ventilation System: Full front-to-back airflow flushes heat and humidity up and out. Pinlock Ready HJ-34P Visor: Provides 99% UV protection, Anti-Scratch coated. Quick, Simple and Secure Visor (Shield) Ratchet System. Dark Smoke sun shield installed. HJ-V12 Interior provides enhanced moisture wicking and quick drying function.