Yes, you can replace the Hook & Loop on hook-and-loop shoes. You'll need to purchase replacement hook and loop tape, which is commonly known as Velcro. You can find this at many fabric stores or online. To replace the Velcro, you'll need to carefully remove the old, worn-out pieces. Then, using a strong thread and needle, sew the new hook and loop tape onto the shoes. Ensure it's securely attached to maintain the shoe's functionality.