The K2 Entity is a great helmet for aggressive little skiers that are always trying to leave their parents behind on the mountain. The addition of a LED Dome Light on the back of the helmet will make it very easy for you to track down your little skier on crowded slopes at night time of blizzards. K2's Passive Channel Ventilation System keeps a steady flow of air moving through the helmet at all times, to prevent overheating. The Entity is also equipped with Side Goggle Retention Straps that will always keep their goggles in the proper place on their head and face. Just to add more value to the Entity, it is fully certified to be use while biking in the summertime and you can change out the padding for warmer weather. If your little skier needs a four season helmet that will make it easy for you to track them down, the K2 Entity is the way to go. LED Dome Light, Summer Pad Kit, Passive Channel Ventilation, K2Dialed Fit System, Washable Full-Wrap Liner, Side Goggle Retention Straps, 480g, Sm (51-55cm), Certifications: ASTM F 2040 EN1077 CPSC 16 CFR 1203 EN 10778, Warranty: One Year, Race: No, Category: Half Shell, Audio: Not Compatible, Brim/Visor: No, Ventilation: Fixed, Adjustability: Full, Year Round Capable: Yes, Shell Construction: Hard Shell, Model Year: 2016, Product ID: 388286, Shipping Restriction: This item is not available for shipment outside of the United States., Model Number: S1508012022, GTIN: 0886745453260