The durability of orthotics is dependent upon what materials were selected in the design of the orthotics.
Semi-Rigid and Semi-Flexible Shells will generally last five years and may last up to a lifetime. Graphite Shells will generally last for 2-3 years. Soft Orthotic Shells will generally last for 12-18 months.
The top-cover of the orthotic is subject to the greatest amount of wear and tear because it is in direct contact with your foot and perspiration. The life of the topcover depends on your body chemistry and activity level.
We recommend that the foot be re-casted after 5 years or in the event of a new significant injury.