Cressi Calibro Professional Scuba Diving Freediving Mask with Anti Fog Technology

IDF INTEGRATED DUAL FRAME TECHNOLOGY - The Calibro features CRESSI patented IDF technology, integrating the frame into the rigid skirt for a compact, hydrodynamic shape. The raked angle keeps the mask close to the face with a wide lens and low volume LOW VOLUME DESIGN FOR SCUBA AND FREEDIVING - The reduced volume suits scuba diving and freediving, requiring less air to clear and making equalisation more manageable. The compact, close-fitting profile supports a secure fit on extended dives PATENTED NOSE MEMBRANE TO HELP REDUCE FOGGING - A patented membrane surrounds the nose pocket to channel moisture away from the lenses. CRESSI recommends applying anti-fog solution or saliva to the inside of the lenses and rinsing before first use MATTE COATING TO LIMIT UNDERWATER REFLECTIONS - All Calibro components feature a matte finish that limits light reflections in the water. Useful during dives in natural environments, reducing disturbances to marine life caused by reflected light INTEGRATED BUCKLES AND TEMPERED GLASS LENSES - Buckles integrate into the rigid skirt via a flexible rubber attachment for strap adjustment and positioning without shifting the mask. Tempered glass lenses provide optical clarity in diving conditions

U.S. Pat 6272693 B1 Ultra Low Volume Integrated Dual Frame Tempered Glass Micrometric Adjustable Buckle