Built with supple silicone that provides a comfortable fit over extended periods and a watertight seal on virtually all face shapes, the single-lens Steel Pro offers some of the best field of view on record, and the buckle and strap systems are easy to adjust. Whether you free dive or scuba dive, this mask is perfect for you. This single-lens frameless mask has very low-volume for easy equalizing, and its soft silicone skirt provides a comfortable, watertight fit on a range of face shapes. The white skirts also block out light reflection. Ultra-low-volume design requires minimal air when equalizing, a huge plus for free divers. Ultra-clear scratch-resistant tempered glass lens deliver undistorted vision and long-term wear. Rotating buckles work with a micro-adjustable strap to achieve a comfortable, watertight fit. The double feathered edge skirt creates a great seal on the face. The mask has a wide split head strap for added comfort with easy adjust buckle assemblies. Equalization of the ears is made easy with the easy access nose pocket. To safely store the mask, it comes equipped with a protective mask box.