The mask is designed so that the integrated face and frame allow for an extremely hydrodynamic and compact shape and a particularly wide lens, maintaining the mask extremely close to the face.
Cressi’s Calibro combines minimal internal volume with a phenomenal field of view due to the raked angle of the frame.
The buckles are directly integrated into the rigid skirt through a solid but flexible rubber attachment that allows you to adjust and place the mouthpiece without shifting the mask.
Thanks to its matte coating the mask’s components all match, enhancing the underwater experience since it prevents reflections in the water that may disturb marine life. 
Calibro is the perfect mask also for free-diving since it is designed to provide the diver with a feeling of total freedom and comfort.