Troxel Terrain with MIPSThe Terrain is the next level low profile equestrian helmet with 12 extra large vents and a frontal reinforcement cage for maximum airflow and added impact resistance. It's innovative safety system features Mips technology, a lightweight, low friction layer in the helmet that allows a multi directional movement of 10 15mm on certain angled impacts, intended to help reduce rotational force to the head. With a patented, moisture wicking Coolcore