Cressi Big Eye Evolution Crystal

Crystal Silicone - The Silicone Revolution
Crystal Silicone is an exclusive CRESSI material that revolutionizes mask skirt clarity.
It offers incredibly clear vision and features long-lasting advanced technology components within the pure silicone skirt which prevents premature discoloration, reduces fogging, and guarantees many years of Crystal clear viewing. 
Cressi Crystal silicone : Another Exclusive Industry First

Not only has this new High Seal silicone been chosen, with its exceptional softness and comfort, but the entire design of the skirt has followed new rules which allow a point of contact between the mask and the face that has a very open angle.

The mask rests on the face with unprecedented comfort and does not leave any marks on the skin, even after extended use.

Naturally, to obtain such a result the entire structure of the skirt is differentiated, with internal ribs that stiffen the parts of the mask that are most stressed.