To get a truly accurate measurement, you need a swatch that's at least 6x6 inches
Upright storage that maximises cockpit space
Second, I ve referred to my helmet in the past tense because on a recent ski trip( I m a boarder, but my family skis, so I m going with ski trip here) I caught my edge on my last run( I know, I know) and I was slammed into the slope on my back, and I whacked my head on the ground
The back panel uses a ribbed foam

Key Features ACCESSORIES INCLUDED Pinlock lens Wind protector AERODYNAMICS Optimized for all riding positions Shell shape designed to maximize aerodynamic performance and achieve zero dynamic weight at 130 km/h INTERIORS 2Dry material for instant sweat absorption Cheek pads interchangeable between all sizes Embracing neck roll profile Eyewear ready interior for glasses Fresh and smooth breathable fabric No stitches in sensitive areas Ready for generic communication systems Removable and washable interiors RETENTION SYSTEM Steel micrometric buckle closure SHELL High resistance thermoplastic shell construction 3 shell sizes Collarbone safe profile Multi-density EPS developed in 4 sizes VENTILATION 1 rear extractor 4 front vents Adjustable air vents VISOR 100% Max Vision Pinlock included 190 horizontal field of view Anti-scratch visor Integrated anti-scratch sun visor, removable without tools Micro-opening system Multistep visor mechanism Patented Extra Quick Release System UV protective visor Visor step for city position Sizing Guide XS 53-54 S 55-56 M 57-58 L 59-60 XL 61-62 2XL 63-64 Motorcycle helmets are designed for a close and comfortable fit but can change size with use

Trust your gut if something seems fishy