Sizing and proper fit are critical... Not being mean here, but did you try on any "Youth" size helmets?? If the "Extra-small" is too loose you might find a full face "Youth" helmet, that is both comfortable and has a proper fit...i tried on some hjc's,shoei's,Icon's,arai's, scorpion's..... the hjc's and shoeis didnt move side to side but the did move up and down... the scorpion's were all too heavy and also moved up and down.... the Icon alliance helmet was a close fit but the smallest they had was a X-small... the guy recommended I try the Icon airframe because its a bit more snug...I tried on the Arai vector 2... but the extra small was still a little too big so a XXs would fit perfect but it has some weird padding in the ears that feel like built in ear plugs lol....so im thinking my best bet may be an arai...but i dont know most of the shops near me are closed on mondays... i may have to go back out tomorrow and try some other arai's and icon helmets if i can find them in xs and xxs.