The Thor Blitz XP Youth Breathable MX Boots are packed with features... Specifications Include: Tested and certified according to standard EN 13634:2015 Mesh liner promotes airflow Injection molded positive lock buckles Uni-directional outsole with a steel shank insert Metal toe cap reinforces the outsole strength Injection molded medial abrasion plate with integrated shift protection Fully synthetic calf overlays deliver premium durability and optimal grip 3 fully adjustable straps allow for a custom rider specific fit Pre-curved injection molded shin plate Adjusted boot height and smaller sizing tailors to younger riders