- Dr. Martens Youth & Junior Footwear Size Chart - Dr. Martens Kids' Footwear Size Charts - This Dr. Martens® Kid's Collection Mary Jane Bex Y takes a classic silhouette and turns the volume up. Built from high-shine black Patent Lamper leather, this pair is elevated on a chunky black-and-smoke Bex Kids outsole. A sealed glitter heart detail on the vamp adds a playful twist, while contrast stitching and a metallic buckle keep it loud and proud. This pair of shoes features round toe design, hook-and-loop fastened strap, and branding on the footbed. - Polyester lining, and insole. - Polyvinyl chloride (PVC) outsole. - Imported. Measurements: - Weight: 1 lb 6.4 oz - Product measurements were taken using size 5 UK (US 6 Big Kid), width M. Please note that measurements may vary by size.