The Atomic Hawx 3 is slightly firmer than the Hawx 2, there is one buckle added and it comes in the next sizes up. The same easy-entry design remains. The three buckle construction together with the soft and forgiving cuff supports the little ones as they venture to steeper slopes. This boot also has the Size Adjuster, which is typical for the Hawx Jr series of boots. Fast growing feet can fit inside the boot for longer when you remove the Adjuster from inside the boot. - Sizes MP 22-23 (MP) - Medium-firm support for small feet - Three buckle design - Size Adjuster - Conforms to ISO 5355 Alpine Norm