Fly Racing Freestone Helmet MTB helmet with Cone Head™ Technology. Cone Head™ is the developmental code name for a revolutionary new way to mold EPS foam for helmets. The new Cone Head™ acts like a crumple zone around the head to absorb & dissipate impact forces more effectively than current hard foam liners. There are two different densities of foam as well as two different foams with their own characteristics of recovery from impact & inter-foam bond strength. Specifications: Recommended use: Mountain Bike, All mountain, Trail, MTB Endurance/ Marathon Weight: 317.5 grams (M/L) Deep rear EPS profile offers extensive coverage 19 vents Ventilated comfort liner with built in bug screen Adjustable moto inspired visor One hand dial fit adjustment, dial fit on the fly Quick adjust chin/cheek strap Available in 5 color ways & three sizes Cushy EVA impact foam on sides & back for comfort & protection. 6 piece shell construction for a unique style & bold loo