The-Airoh-CR901-is-a-quality-thermoplastic-helmet-The-helmet-has-an-advanced-ventilation-system-with-double-front-&-rear-air-extractors-The-innerlining-is-removable-&-washable-The-Airoh-CR901-has-Double-D-rings-&-weighs-1270-grams-Specifications-Thermoplastic-shell-Removable-&-washable-lining-Chin-Guard-protective-mesh-netting-Air-ventilation-system-Double-D-rings-1270-grams