GPA Size Chart
The specific technical feature of the GPA helmets is the creation of 3 outer shell sizes and 6 different sizes of inner head liners to ensure the helmet’s best «retention» and a level of comfort adapted to each head size.
In order to best meet the safety requirements, GPA has not hesitated to invest in research and development and has chosen the best manufacturers of materials. By relying only on quality brands recognized for their performance, GPA thus guarantees that its products are based on the highest level of research and cutting-edge technology.
|Head Circumference (cms)||Helmet Size|