The New SPHERA X is the next generation SPHERA, the number one Freediving mask by Aqua Lung. The unique distortion-free lens technology provides a 180 degree wide-angle field of vision and let the user experience a panoramic vision that's pure freedom for the eyes. The mask also features a new silicone skirt, an attractive lightweight frame structure and an easy-to-adjust micro buckle system. It comes in a heavy-duty zippered EVA Case, not only to protect the Plexisol lenses but also to reduce PVC plastics waste.