Size: Large Men 10-13  Women 11-15 * Size: Medium Men 7-10  Women 8-11 * Size: Large Men 10-12  Women 11-15 * Size: X-Large Men 13+  Women 15+ * The Pneumatic WalkerTM offers enhanced stability  mobility and edema control * Air bladder inside * Anatomically designed in three sizes * HCPCS Suggested Code: L4360