Medieval Knight Jousting Tudor Renaissance Close Armor HelmetThe term Close Helm refers to the fact that this type locks firmly around the head for complete protection, with a very narrow field of vision to expose the eyes as little as possible. The visor is pierced with key holes on both sides for good air flow during combat. The lower bevor section is split into two overlapping pieces that are hinged at the sides and hook together at the chin while the visor locks down firmly over it. Measurement Inner