Fit Type: Regular Sculpted Styling With Exceptional Fit And Peripheral Vision. Optically Correct anti-fog Glasses Which Is Durable And Shatter - Proof. Motorcycle goggles with detachable mask, so the goggles can be used alone. and the mask with slot and the goggles with slot hole which is easy to install and dismantle. High elastic band, which can freely adjust the length, the non-slip strap fits any size of head, the breathable and hypoallergenic foam adds exclusive comfort while you wear them. For science experiment, laboratory, Carpentry. Or outdoor sport, such as motorcycling, riding, snowmobile, skiing and so on.