The 10.4 mounting a straight and very protective visor (replaceable with other screen smoked and cut glasses, available as options).
Although part of the category of helmets more open (that of demi-jet), the 10.4 has front air intake, which helps increase the flow of air inside.
The closure is achieved by a quick release strap, with micrometric adjustment complete with removable chin protector.
Data sheet:
shell polymer
Interior removable and hypoallergenic
clear anti-scratch visor
micrometric closure
Weight 1000g +/-
Size M1 - for head circumference 57cm
Size M2 - for head circumference 58cm