A compact mask popular among marine leisure, free-divers. Curved Lens Specifications 180 degree clear vision. Thin frame and small buckle reduce water resistance. Wide, renewed silicone skirt for a great fit. Large mask strap closes the mask at the back of the head for a wider range of fit and stability for added comfort. The belt is made with a micro-buckle system that allows you to easily adjust the belt just by pulling it, so you can get the perfect fit every time. Comes with a zippered EVA case, so you dont have to worry about scratches when you carry it.