Helmet with unventilated shell With its strong chinstrap, the VERTEX BEST helmet sets the standard in head protection. Its six-point textile suspension ensures maximum comfort, and its CenterFit adjustment system adjusts the headband and keeps the helmet centered on the head. Optimal protection: - shock absorption achieved through deformation of the outer shell - strong chinstrap (more than 50 daN) limits the risk of losing the helmet during a fall Very comfortable to wear: - six-point textile suspension conforms perfectly to the shape of the head - CenterFit adjustment system adjusts the headband and keeps the helmet centered on the head - comes with two sizes of headband foam Accessorization possibilities: - ULTRA VARIO headlamp (front and back slots) - headlamp with elastic headband (headlamp clips) Specifications Head circumference: 53-63 cm Weight: 455 g Certification(s): CE*, ANSI Z89.1-2009 type I classe E * Meets the requirements of the EN 397 and EN 12492 standards for impact protection. Meets the requirements of the EN 397 and EN 50365 standards for electrical insulation. Meets the optional requirements of the EN 397 standard for molten metal spray, lateral deformation and use in low temperatures.