Custom orthotics are most effective in shoes that are constructed well, fit properly and are in good condition. It is best to bring in your shoes when your health care practitioner is fitting you for orthotics.
Knowing the type of footwear you wear the most will help your practitioner prescribe the right style of orthotics for your lifestyle. It is quite normal for some practitioners to prescribe two pairs of orthotics to patients (ie. Dress and Sport). When shopping for new shoes, it is also best to bring your orthotics with you for fitting purposes.