Kask Mistral Helmet There's Only One Speed: Fast! Harness your pure energy, cut through the air. The unique design of the Kask Mistral aero helmet will speed you all the way to the finish line in maximum comfort and safety. The team of experts involved in development has delivered optimal aerodynamic characteristics, making the Mistral particularly suited to triathlon and track racing. This extremely aerodynamic helmet cleverly conceals six front openings and two rear ones. The design features extended inner channeling, providing the rider with constant comfort thanks to in-molding technology. Inside the outer shell, there is 3D dry padding to securely fit and protect the rider, with a self-adjusting lateral divider and faux leather chinstrap. Features Aerodynamic shape that helps you cut through the wind Clear visor with an anti-fog treatment3D Dry padding utilizes a multi-layer open-cell construction process SPECIFICATIONSCore Material EPSClosure system-Safety Certifications CPSC 1203Intended Use Triathlon, Time Trial, Racing Weight370g Sizing Size Medium Large Head Circumference (cm)55 - 58cm59 - 62cm Head Circumference (in)21-5/8" - 22-7/8"23-3/8" - 24-1/2" | Kask | Mistral Helmet | Size Large In Black/anthracite