Chin strap held on the helmet by 4 rivets. Adjustable nylon straps with double adjustment (adjustment triangle for front/back lengths balanced or uneven), a fast self-locking buckle (dual-lock) and an anatomically designed pad. It can be moulded for a better adjustement. Fitted to the back band. The nape protector is anatomically designed. Fixed on the harness of the chin strap (not the helmet) to allow the ideal positioning of the helmet and ventilation of the back of the neck. A cushion of thick foam padding covered by black PVC fabric.

12 Sizes: from 52 to 63 in 3 outer shell volumes. Ideal balance between the helmet?s inner volume and the volume of the outer shell which creates a perfect aesthetic harmony whatever the shape of the head.

Outer shell is a spherical heat-formed injected composite. 2 very large side air vents in the front, 2 vents in the back creating a draught ensuring the optimal dynamic ventilation of the helmet. The hot air is evacuated naturally through the back. Air vents covered by stainless steel mesh. New GPA front logo. Finish: high-tech new "soft" paint. Visor fitted into the helmet. Designed to detach upon impact reducing risk of injury.

Front air inlets also in heat-formed injected composite, inset in the outer shell. 3 wide vents for axial ventilation allow an additional penetration of air and create a linear depression which accelerates the air flow and favours heat transfer. These elliptical vents are also covered with stainless steel mesh. This designer helmet provides total rigidity as well as giving an impression of lightness.

Head liner in "aerated" foam covered by high-tech antibacterial fabric. Made up of 4 independent parts (front, central, right and left). This washable liner is removable and can be replaced or adapted.

Inner shell lining (inner shock-absorbing lining) in high-tech high-density polystyrene. With cut-outs facing the air vents.