Formula Cc Glide Helmet Blue/Light Grey/Grey LgFeatures: ECE DOT approved Tri weave composite shell is comprised of carbon fiber, DuPont* Kevlar? and fiberglass, producing a lightweight shell with superior penetration resistance Impact Energy Cells made of RHEON, the Impact Energy Cells maximize absorption of low speed linear and rotational impacts, reducing forces transmitted to the brain Conehead? Dual density Expanded Polystyrene (EPS) Technology provides a softer liner whereby the cones help