SPEED AND STRENGTH SIZING CHART PROTECTIONThe Speed and Strength® SS1550 Off The Chain™ motorcycle helmet is built with an A.T.P.A.™ Advanced Thermo-Poly Alloy shell that meets or exceeds DOT standards.FIT/COMFORTThe helmet fits an intermediate oval head shape and allows for the interchanging of liners and pads within sizes S-M / LG-2XL. The liners/pads are moisture wicking to help with sweat management and are completely machine washable.SHIELDThe SS1550 comes with both a clear and dark tint All Clear™ face shield and is equipped with a Lock 'n Load™ shield replacement system allowing for a quick conversion from clear to tint, or vice versa.VENTILATIONThe Air Strike™ direct course ventilation system features 5 closable intake vents and 6 exhaust vents allowing for the free flow of air when you need it. The helmet comes with an integrated chin curtain to reduce wind and includes a breath guard for added fog protection. PROTECTION• A.T.P.A™ Advanced Thermo-Poly Alloy Shell• Meets of exceeds DOT standardsFIT/COMFORT• Intermediate Oval Head Shape• Removable, washable and moisture wicking liner• Quick-Connect chin strap• Interchange Liner/Cheek Pads between sizes: S-M / LG-2XLSHIELD• All Clear™ clear, anti-scratch, UV resistant face shield• Includes dark tint, All Clear!™ face shield• Lock 'n Load™ rapid conversion shield replacement system• DVD™ Drop Visor Design internal sun visorVENTILATION• Air Strike™ direct course ventilation system• Integrated chin curtain to reduce wind• Breath guard included for added fog free performanceOTHER FEATURES• Reflective trim• 2 Shell sizes• 1400g +/- 50 to 1500g +/- 50