Deciding which orthosis would be best suited for a given patient is a complex process involving many different factors. The fancy names used by laboratories to describe their products only add to the confusion when the practitioner is attempting to determine the best device. The ability to successfully manage biomechanical abnormalities may be enhanced by understanding the properties of different orthotic materials and the associated patient factors involved. The podiatric practitioner also should be aware that the grade and quality of materials are not the same from different manufacturers, and that the way laboratories handle the materials also affects the final properties of the orthosis. For this reason, it is beneficial to sample orthoses from various laboratories, and to feel comfortable in asking for technical assistance when ordering.