A strong, lightweight bike helmet, giving good all-round protection to all levels of rider. Versatile protection A great looking shell that\'s tough and well-ventilated, with the ability for single-handed Ergo-Fit adjustments, and a removable visor.Fusion In-Mold polycarbonate shell bonds the outer shell to the EPS foam linerErgo Fit sleek dial system for one-handed adjustments25 ventsNo-Twist Tri-Glides: Quick-adjust fasteners that help keep straps flat and properly positionedRemovable visorCE EN1078 certifiedWeight: 289gSize: One size: 53cm - 60cm