The very comfortable and light Bollé TRACKDOWN MIPS L cycling helmet (59-62 CM) will protect you even better thanks to MIPS technology. In the event of angle impact, the movable MIPS® insert inside the helmet will allow slight movement against the helmet shell, thus absorbing rotational forces. The result is a significant reduction in these forces which would be transmitted to the brain. The size can be adjusted using a 360 ° system around the entire circumference of the head with the ability to vertically adjust. Fifteen vents ensure perfect air circulation, reducing the possibility of sweating inside the helmet.