From racing our buddies up climbs to railing berms on the descents, the Troy Lee Designs Flowline SE MIPS Helmet keeps our domes protected from bumps and crashes along the way. 14 massive vents help keep our heads cool, while dual-density EPS foam helps manage both small and large impacts. A MIPS liner adds even more impact protection with its proven ability to decrease the amount of rotational forces transmitted to our brains in a crash.