There is a rule, M27 or so I think, that says that the mesh of a foil mask must
NOT extend below the chin of the fencer and that the mesh must be insulated
INTERNALLY and
EXTERNALLY by an impact resistant plastic material.
Since it is really hard to get plastic
INSIDE steel wire and every mask I have ever seen comes to
BELOW the chin, none of them are legal for foil. The fact that this rule exists does go a long way to confirming my belief that the sport of foil is just a practical joke that got out of hand!
