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 lens is made of tempered glass and certified by the CE (Communauté Européenne). 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. The F1 is designed in Italy by Cressi and made in Taiwan. Cressi has been an Italian brand pioneer in scuba diving, snorkeling, and swimming equipment since 1946.