Dragon PXV. 220 degrees of curvature, Lumalens technology and toric Panotech lens shape. What does all that mean? By utilizing a unique toric lens curvature—Dragon's Panotech Lens—it allows the frame to wrap further around your head, giving you expanded sight lines. Pair that panoramic visibility with Dragon's Lumalens® optimized color tints, Super Anti-Fog treatment, and cush triple-layer face foam and bam! you've set a new standard for what a goggle can accomplish.