The Frameless masks are loved by many divers for their low-profile and ability to fold flat for easy carrying, even in a BC pocket. Cressi's frameless design bonds a high-grade silicone skirt directly to a single lens for the ultimate in simplicity. The low-internal volume allows for effortless clearing and quick-adjust strap buckles are molded directly into the skirt for a flexible fit and reduced drag. It also represents an unbeatable value, with a cost roughly half that of similar masks