Cressi Air Crystal

This mask has a particular tapered structure deriving directly from the highly popular Nano-mask patent. The Dual Integrated Frame Technology System allows you to join the silicone skirt to the lens frame without major interruptions of the curvature continuity. The result is a mask with an extremely hydrodynamic shape and, visibility being equal, a significantly smaller size. The field of view obtained is particularly wide, laterally and in the lower zone. The skirt, in the front part, has a structural silicone insert which increases the sealing ability of the mask and creates an exceptionally pleasant chromatic play. Micrometer adjustable buckles.

Crystal Silicone
U.S. Pat 6272693 B1
Double injection technology
Integrated dual frame
Tempered glass
Micrometric adjustable buckle
Flexible buckle
Inclined lenses