Atomic Four AMID Pro helmet is the pinnacle product in the Atomic all-mountain Four family, and the team helmet for the Atomic Freeski crew! When you&&';;re honing your skills and trying out tricks, knowing you&&';;re safe gives you that all-important confidence to commit. The combination of the Hybrid In-Mold Construction, AMID technology and Holo Core offers up to 40% more impact protection than industry safety standards - this helmet will keep you fully protected any time, in any terrain and from every angle. Live Fit pads mold instantly to your head shape. The helmet&&';;s position on your head and how snug it fits can be fine-tuned with the 360deg Fit System. Besides an urban-inspired, low-profile design, the Four AMID helmet also offers a removable liner and goggle clip, which let you ride with beanie and goggles underneath the shell if you want. Whatever your look, feel the freedom to wear it. Datasheet Dive into the details Safety Technology Fit System Interior/Liner Construction Ventilation Weight Certification Safety Technology:AMID Fit System:360Adeg Fit System Interior/Liner:Remove-/Washable Full Cap Liner Construction:Hybrid In-Mold Construction Ventilation:Aircon Venting Weight:380g (S) Certification:CE EN 1077:2007 CLASS B FOUR AMID PRO AMIDAtomic Multi-directional Impact Deflector: up to +40% impact protection than industry standards.360Adeg Fit SystemFine-tunes the helmet to your head size and shape - height-adjustable for 100% personalized comfort.Live FitSurrounds your head 360Adeg and molds to your head shape for an instant individual fit.Hybrid In-Mold ConstructionInjected PC around sides for max protection against side impacts, with an in-mold upper section.Aircon VentingOur advanced cooling system with multiple air channels through each layer of the helmet to keep you cool and dry.Remove-/Washable Full Cap LinerComfortable and light with integrated 3D-molded ear pads: warm on cold days and cool on warm days.Merino 3M(TM) X-Static LiningMade from merino wool with anti-microbial and anti-odor properties, regulating body temperature.Magnetic FidlockA(R) BuckleSuper easy to open and close one-handed - even with gloves on - and never pinches the skin.Audio Compatible Ear PadsHelmet BagCE EN 1077:2007 CLASS BASTM F 2040 XXS XS S M L XL XXL REDSTER WC - 51-53 53-55 55-57 57-59 59-61 61-63 REDSTER - - 51-55 55-59 59-63 63-65 - REDSTER JR - - 51-55 55-59 - - - REDSTER SL - - 51-55 55-59 59-63 63-65 - SAVOR GT AMID / SAVOR GT / SAVOR AMID / SAVOR / SAVOR VISOR / SAVOR GT AMID VISOR - - 51-55 55-59 59-63 63-65 - SAVOR VISOR R / SAVOR R - 48-52 51-55 55-59 59-63 63-65 - REVENT + AMID / REVENT + LF / REVENT + / REVENT / REVENT GT AMID / REVENT LITE / REVENT LITE+ / REVENT GT AMID VISOR - - 51-55 55-59 59-63 63-65 - BACKLAND UL / BACKLAND - - 51-55 55-59 59-63 63-65 - FOUR AMID PRO / FOUR AMID LITE - - 51-55 55-59 59-63 63-65 - FOUR AMID - 48-52 51-55 55-59 59-63 63-65 - REVENT JR / REVENT VISOR JR - 48-52 51-55 55-59 - - - FOUR JR 46-48 48-52 51-55 - - - - SAVOR VISOR JR - 48-52 51-55 55-59 - - - COUNT JR - 48-52 51-55 - - - -