The Holt Is Built For All-Season Toughness Thanks To Its Bombshell Construction. The Proven Fit And Reliability Of The Holt Will Get You From The Park To The Backcountry And Back.Features:Protection:- Bombshell Construction- Airflow Climate Control- 14 Vents- All-Season UseFit:- Self-Adjusting Lifestyle Fit System- Removable Bombshell Ear PadsIntegration:- Airevacâ„¢ Ventilation- Removable Goggle Lock- Audio Compatible Ear PadsSpecifications:- Certification: Astm F 2040, Ce En 1077:2007 - Weight (Size M): 19 Oz / 550 Grams