Smaller, younger skiers don\'t need 4 and 3-clip boots, as they can be too stiff and high on the leg. The Z2 is the ideal option for them. It uses Vario Last across the range that changes the shape of larger sizes to suit how children\'s feet grow. It also uses a Natural Kids Stance for a more comfortable skiing position that puts less stress on little joints. It\'s easy to put on and take off and combines comfort with good foot hold.Ability LevelOverviewFitMedium to high volume with good heel hold and and roomy toe area.Shell Superlight shell and cuff. LinerJunior Liner. Soft, warm and comfortable, with a loop on the tongue.Key FeaturesJr Hi-TopHigher tongue profile and asymmetrical lateral support produces instant skier-to-ski power transfer for easier turns.Two Phase Flexthe smooth flex helps produce a natural centered balance.Vario Last DesignThe last width varies with the size, smaller sizes being wider in relation to the length compared to larger sizes. This accomodates the natural growth and shape of kid\'s feet.DuoFlexThe DuoFlex enables excellent balance and control in all portions of every turn.SpecificationCategory: AlpineFlex: n/aLast Width: n/aCustom Shell: NoCustom Liner: NoPower Strap: n/aVolume: Medium-HighClips: 2 X Metal/Plastic Low ProfileSole Unit: Alpine (Child ISO 5355)Pin Inserts: NoHike Mode: NoWeight (g): 902 (1/2 pair size 20.5)Binding Compatibility: Alpine (Children), GripWalk (Children)