Features:- Safety Tech:Fit:- 360° Fit System- Ear Fit SystemConstruction / Venting / Lining:- In-Mold Shell - Aircon Venting- Removable And- Washable Full- Cap Ski LiningExtras:- Strap Station- Audio Compatible Ear PadsCertification:- Astm F 2040 Ce En 1077:2007 Class B