Advanced-Polycarbonate-Composite-Shell-Lightweight-superior-fit-&-comfort-using-advanced-CAD-technology-The-value-priced-helmet-allows-the-high-level-of-comfort-quality-&-performance-ldquo-ACS-rdquo-Advanced-Channeling-Ventilation-System-Full-front-to-back-airflow-flushes-heat-&-humidity-up-&-out-Micro-Buckle-with-Retention-Strap-Quick-release-&-adjustable-Helmet-shell-ADVANCED-POLYCARBONATE-COMPOSITE-SHELL-Speed-Cool-inner-lining-removable-&-washable-Features-The-value-priced-helmet-allows-the-high-level-of-comfort-quality-&-performance-Advanced-Polycarbonate-Composite-Shell-Lightweight-superior-fit-&-comfort-using-advanced-CAD-technology-ldquo-ACS-rdquo-Advanced-Channeling-Ventilation-System-Full-front-to-back-airflow-flushes-heat-&-humidity-up-&-out-Micro-Buckle-with-Retention-Strap-Quick-release-&-adjustable-Weight-1450gr-50g