To provide a full face type helmet capable of efficiently introducing the breath of a wearer reflecting from a chin guard toward a right and a left cheek pad sides through the lower part of the helmet downward to the rear, discharging the breath to the outside of the helmet, not retaining the breath in a space at the front of a face in the helmet without reducing the essentially possessing function of the chin pads largely contributing to the wearing feeling of the helmet.

A guide part B for discharging the breath of a wearer reflecting from a chin guard 2' arranged inside of a cap body 1 from the bottom of the cap body downward to the rear is formed by squashing or deforming the middle part of a cushioning member 6 constituting an interior body or cutting the cushioning member 6 without reducing the contact area with cheeks in the interior body of cheek parts and the possessing function of cheeks.