Shell design An aerodynamic shell design constructed using an advanced lightweight composite poly-alloy Cut out on shell sides to accommodate most neck brace designs A clear coat finish to protect paint & graphics Ventilation 24 points of ventilation with chin, side, forehead, top & rear vent 14 intake vents. 6 exhaust vents positioned to maximize negative pressure suction Chin vent Screw in replaceable chin vent for easy replacement or cleaning Thermal Dome (TM) 4 Thermal Domes (TM) heat extraction vents (patent pending) 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-19R weighs 1.36kg or 3.00 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 replacing your existing comfort liner with a thinner comfort liner (for a looser fit) or thicker comfort liner (for a tighter fit). Please refer to the shell, liner & cheek pad compatibility chart below. Keep in mind these components can only be replaced inside the group of sizes contained in each size range block. Shell & EPS Size XXS/XS/S L/XL/XXL XS S M L XL XXL Cheek pads (mm) 26 22 18 26 22 18 Confort-Liner (mm) 10 8 6 10 8 6 Note Please be aware, as long as nothing else is written in the item description: All helmets will be delivered only with the ECE certification by default