QR Code Link to This Post Speed and Strength SS1700 High Visibility Modular HelmetFeatures: High visibility yellow color "DVD" Drop Visor Design "A.T.P.A." Advanced Thermo-Poly Alloy Shell Meets or Exceeds DOT and ECE 22-05 Standards "Cool-Core" Removable, Washable and Moisture Wicking Liner "Airstrike" Direct Course Ventilation System "Lock 'N Load Plus" Rapid Conversion Shield Replacement System "All Clear! Sight System" Optically Correct, Anti-Scratch, Anti-Fog and UV Resistant Face shield Quick release chin strap. Carry bag included.Refer to sizing chart here (55-56 cm head circumference) --> http://www.revzilla.com/speed-and-strength-size-chart#speed__strength_helmet_sizingVideo review, here --> https://www.youtube.com/watch?v=w9142qRG0GE