*Vents To Dissipate Heat Rapidly
*Fiber Tape Head Hoop For Better Comfort
*Ratchet Adjustment Knob, Tight And Reliable
*6-point Attachment Provides Impact Protection
*Standard: CE EN 397:2012+A1:2012; ANSI Z89.1-2009 TYPE 1 CLASS C; GB 2811-2007
*Certified By CE, AC, ICS