The MIPS-C2 brain protection system allows the Trenta to slide relative to the head in the event of a fall, redirecting harmful rotational forces. Designed for use in the peloton, the rear design of the MET Trenta and its internal channels provide optimal performance in a group, with up to 7% less air resistance than a conventional road helmet. The frontal NACA ventilation and rear deflectors work together to channel airflow inside the helmet without slowing you down. 30% of the helmet is in contact with the head, reducing temperature increase.