A diving mask (1) comprises at least a lens (2), a facepiece (3) made of a soft and elastioally yielding material, provided with at least a front opening (7) for positioning the lens (2) and a rear profiled element (6) for resting on a users face, and a rigid frame comprising a first frame element (4) and a second frame element (5) anterior to the first frame element (4), fixed to one another such as to guarantee a seal between the facepiece (3) and the lens (2), the front opening (7) of the facepiece exhibiting, along a perimeter edge thereof, a hollow positioning flange (9) for the first frame element (4), the hollow flange (9) extending from the internal side and at least partially posteriorly to the front opening (7) of the facepiece (3).
