Designed and developed for Professional MotoGP athletes where going faster and being protected is the goal Minimized drag and ensures optimal aerodynamic stability, air management outside and inside of the helmet Enhances the overall experience in racing and sport riding Optimized chin bar design for maximum collar bone protection Designed with a recess at the collar bone area to keep a softer volume in case of contact with the body The chin bar is profiled for light weight and robustness, protecting the rider's chin tip area Multi-layer composite construction bonded together with advanced epoxy resin to maximize strength, mechanical performances and weight ratio External and internal design and materials densities are optimized for maximum protection from linear and oblique acceleration impacts Shell's lower profile is designed to protect the rider's collarbone in a heavy impact Overall helmet shape developed for aerodynamic efficiency and stability Race spoiler and winglets further reduce drag by 4.54% The aerodynamic spoiler is fitted with Alpinestars release system, which is also utilized on the S-M10 motocross helmet Fitted with turbulators on the visor to improve the aero-acoustic performance Lowered eyeports on the sides for maximum lateral vision in the riding position The shield is provided with pins for fixation of a Pinlock(R) 120XLT - 100% Max Vision lens Also comes with pins for tear-off films ECE 2206 Homologated optical class 1 shield Chin vent is formed by two openings located in the front of the helmet at each sides of the shield lock mechanism Chin bar vents are used to extract humid air to the outside of the helmet Top vent has large central slider channels air down to the top of the head for better comfort There are two extractor vents located under the rear spoiler for effective hot air extraction EPS foam designed to distribute impact absorption properties exactly where they are needed The EPS is fitted with the Alpinestars A-Head fitting height and angle adjustment system, which is also used in the S-M10 motocross helmet Safely and easily remove cheek pads while helmet is still on with the emergency release system The following standards apply to this product: ECE/ DOT/ FIM certified Available in men's sizes XS-2X; see Alpinestars size chart on page 315 before ordering