This article explores whether orthotic insoles should be worn over the original insoles in shoes. It provides guidance on when to remove or keep the shoe’s existing insoles, how to properly fit orthotic insoles, their benefits, and common misconceptions. The article emphasizes that orthotic insoles generally provide the best support and comfort when used as a replacement for shoe insoles, but exceptions exist based on shoe fit and medical advice. Included is a FAQ section addressing common orthotic-related questions.