Shell design An aerodynamic shell design constructed using an advanced lightweight composite poly-alloy A clear coat finish to protect paint & graphics Ventilation 11 points of ventilation with chin, side, forehead, top & rear vent 3 intake vents & 8 exhaust vents Goggle guide on eyeport trim Goggle strap grabbers Peak A removable & adjustable (50 mm) screw-on visor Retention system Race approved Double D-Ring Weight A large-size FX-17 weighs 1.55kg or 3.42 lbs Certification This helmet model meets or exceeds both ECE 22.05 & DOT FMVSS-218 motorcycle helmet safety standards Removable, washable & custom sizeable interior The size of this helmet is based on a combination of four factors: outer shell size, inner EPS thickness, comfort liner thickness & cheek pad thickness. The fit of the helmet can be customized by replacing your existing cheek pads with thinner cheek pads (for a looser fit) or thicker cheek pads (for a tighter fit). The fit can also be customized by replacin...