evo.com | K2 Alpine Ski Boots > Finally, a junior boot with all the features and quality adults expect, but in a flex that won't overwhelm lightweight groms. The K2 Cortex Jr BOA Ski Boots is the real deal, with a BOA(R) Fit System lower closure and fully adjustable light alloy buckles at the cuff, and flexes of 90 for sizes 24.5 and up and 80 for sizes 22.5 and 23.5. Fully heat moldable just like Mom and Dad's boots, too. Velcro - Tapered PVC - One Piece Flex (Size 24.5 and up) - 90 (Sizes 22.5 and 23.5 are 80) LuxFit Tour Liner 2 Adjustable Light Alloy Last: 97mm to 100mm Adjustable with heat molding to fit a variety of forefoot widths | Kid's K2 Cortex Jr BOA Ski BootsKids' 2027 - 23.5