C71 Full Face Helmet. 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. Interior provides enhanced moisture-wicking and quick-drying function. Pinlock Ready Clear HJ-34P Shield: Provides 99% UV protection, anti-scratch coated. Dark Smoke HJ-V12 sun shield installed. Crown and cheek pads: Removable and washable. Cheek pads: interchangeable throughout all sizes. Universal BT compatible. Standards: DOT FMVSS NO.218 and ECE 22.06. Shield / sun shield options (sold separately): HJ-34P anti-fog Pinlock® ready shield. HJ-34P mirrored anti-fog Pinlock® ready shield. HJ-V12 sun shield.