Construction:Fusion In-Mold Polycarbonate Shell.Ventilation:Dual Flow Ventilation™.Weight:730 g (size M).Mips® Evolve - Safety System.Sizes:S 53-55 cm.-M 55-57 cm.-L 57-59 cm.-XL 59-61 cm.Application Area:MTB.Ergo Fit™ System.-Bell Full-Air Mips.FULL VENTILATION, FULL SEND.The FULL-AIR MIPS is a new statement helmet designed to make a full-face helmet pedal-friendly.Why? Because safety comes first, and the trend towards long-travel trail bikes and e-bikes - and what they are capable of - means riders require the best protection.ASTM F1952-15 DH certified, this is a true full-face helmet but blended with many features and feels of a half-shell.It´s open, ventilated and lightweight, making it comfortable and cool when pedaling.A modular cheek pad system allows you to remove sections to allow greater air flow or add them for extra security, and a Fidlock ® buckle closure keeps things easy and breezy around the chin.The small - XL sizing mimic those in BELL´s full-face range, as does the clever quick-release action camera mount under the visor which is perfect for capturing POV runs.The FULL-AIR MIPS is a heavy-hitting lightweight wonder for those who pedal to the top and attack all the way down.ROTATIONAL ENERGY MANAGEMENT:Mips® Evolve.CONSTRUCTION:Fusion In-Mold Polycarbonate Shell.VENTILATION:Dual Flow Ventilation™.OTHER TECH AND FEATURES:2 position Flying Bridge Visor.Anti-microbial liner.Fidlock ® buckle closure.Action Camera/Light Mount.WEIGHT:730 grams (size M).SIZES:S 53-55 cm.-M 55-57 cm.-L 57-59 cm.-XL 59-61 cm.APPLICATION AREA:MTB.