Cressi Calibro mask with Corsica snorkel package (black). Cressi’s next generation diving masks are all equipped with the IDF-INTEGRATED DUAL FRAME TECHNOLOGY which offers exceptional field of view, and the new Calibro is no exception. 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. The Corsica snorkel is a highly technical snorkel designed specifically for freediving. The soft bendable large diameter tubing makes it extremely comfortable to properly position behind the head while maintaining ease of breathing on the surface.