This style is specially designed to accommodate AFOs (Ankle-Foot Orthoses) and fits true to size. The BILLY zipper opens the upper down and around the toe so the shoe lays flat, and a braced foot goes straight in without forcing. Multiple removable insoles let you adjust depth to make room for the brace, and it comes in Medium (M), Wide (W), and Extra Wide (XW) widths for a true brace-friendly fit. For best fit, measure your child's feet with the AFOs on and follow our sizing guide below.