Like every GPA, the 4S was created around protection as a priority. The 4S is a technological revolution with its 4 layers which allow optimal shock absorption as well as better resistance to lateral compression. The 4S speed air hybrid helmet combines comfort and safety.
An optimal ventilation system
Thanks to its numerous front and side openings and its rear extractors, this helmet offers maximum ventilation.
Unparalleled comfort
This new liner is made of one piece and is removable which makes it easy to wash or renew it. It slips between the shell and the liner using semi-rigid plastic tabs. Its soft and fluffy fabric is antibacterial treated.
Better neck protection and reinforced support
The classic chinstrap is replaced by a hybrid system, a new exclusive from GPA. Straddling the Twin Lock System and the traditional chinstrap, its rear part is made of thermo-composite resin and injected fiberglass. Its nylon attachment straps, covered with imitation leather, close with a two-part buckle (male and female).
Thanks to its rigid part at the back which extends the shell, the Hybrid chinstrap guarantees more extensive protection and better support for the helmet on the head. Its more affordable price and design will win over more conventional riders.