safe, cool and lightweight ? ideal for all keen young skiers.most importantly for kids, the mentor jr is colorful, comfy and cool ? with a matt finish, full cap lining and a grown-up, low-profile shape. most importantly for parents? it offers top protection with ce en 1077 class b certification. you can also fine-tune the size so the helmet will always sit firmly on their head.  passive venting the light and durable shell has a vent system built in for constant air flow. size adjustment mentor jr can be manually fine-tuned using a small dial at the back for an even more precise fit. in-mold construction thanks to an in-mold construction, mentor jr is superlight and weighs in at just 350g. featuressize adjustmentin-mold shellpassive ventingremovable and washable liningcertification: ce en 1077:2007 class b astm f 2040