.=]detail-description[=. br [ln] Double lens forms a thermal barrier between the cold outside air and the moisture generated by intense activity, preventing condensation. [ln] [ln] br - [ln] Venting systems in the frame promote directional airflow across the inside surface of the lens, reducing the potential for fogging. [ln] [ln] br - [ln] Boll? designs are engineered so the goggle is seated in the ideal position for fit, comfort, and technical performance with any helmet. [ln] [ln] br - [ln] All Boll? lenses block harmful UVAUVB rays up to 400 nanometers [ln] [ln] br - [ln] Vermillion lens has a 37 light transmission (Cat 2) for low light, snowy conditions. The lens improves contrast in flat-light. [ln] [ln] br br .=]end[=.