Sizes* XS (53-54 cm) S (55-56 cm) M (57-58 cm) L (59-60 cm) XL (61-62 cm) XXL (63-64 cm) The numbers in brackets indicate the pilot's head circumference in centimetres, which you can determine using a soft/fabric measuring tape, as indicated in the image below. Flybubble Sizing Tip: If your head circumference is caught between two sizes, go for the larger size. This is the rule our team follows, and it proves correct for almost every pilot, giving you a much more comfortable fit and room for a thin beanie or balaclava in winter. * If a size, colour or size/colour combination is not showing or is crossed out in the options then this is not available, sorry. Please select from the available options. Colours* We offer the Charly Insider helmet in the following colours: Bi-Colour Anthracite Bi-Colour Black Bi-Colour Blue Bi-Colour Red Uni-Colour White * If a size, colour or size/colour combination is not showing or is crossed out in the options then this is not available, sorry. Please select from the available options. Package Charly Insider helmet Optional extras (see Related Products) Helmet bag Charly Insider light full-face paragliding helmet The Insider is lightweight (650 grams) yet impact-resistant, with a robust outer shell and a large field of vision. Made from high quality Vinylester, fibreglass and kevlar, it is lined with top quality EPS-foam for excellent impact-absorption, and fully upholstered with quality material. Features Thanks to a vacuum high-pressure moulding process, the aramid fiber reinforced outer shell is weight-optimized and can be produced with a constant quality. Material selection and manufacturing process ensure optimum strength and durability. The Insider produces little wind noise such that the radio set Vox operation works fine. The airspeed can still be assessed well as the helmet limits the hearing ability only to a minor degree. The helmet shell pulled far down at the sides improves the fit on the head and allows for completely pressure-free ear pads. The wide, well padded internal chin strap also contributes to the wearing comfort. Aerodynamically clean without tail: The insider enables an unobstructed upward view and avoids neck injuries. The skin-friendly and breathable full textile interior lining (made in EU) provides for a comfortable helmet climate. The breathable padding is skin-friendly and antibacterial. Comfortable fit also for special sizes like XS and XXL. Resistant (paintable) stove-enamelled multi-layer surface. Weight: 650 g.