You have enough obstacles to negotiate when riding mountain biking. Poor visibility shouldn't be one of them. The enduro goggle system features a specially developed dual-pane lens with ventilation to prevent fogging, enabling you to zero in on the obstacles ahead through any treacherous conditions you throw at it. Features vented dual-pane scratch resistant lens prevents fogging in all riding conditions. Topview lens technology increases peripheral vision and ventilation. Oversized 45mm wide silicon coated strap eliminates slippage. Flexible urethane frame design enhances fit with increased durability. Three layer moisture managing foam keeps you sweat free. Utilizes the same replacement lens as all other 100% goggles.