Abstract: The DynaFlange™ controls foot function during stance and ambulation by absorbing shock in the gaps that form between an orthotic, shoe or heel cup and the DynaFlange™ 3 dimensional plate. Its flanges dynamically deform at impact causing the gaps between the concave heel cup and the convex DynaFlange™ to interact providing foot and ankle protection, repositioning and motion control while dynamically absorbing shock. It then returns to its original state which stabilizes and propels the foot actively, superior to other orthoses. DynaFlange™ is active at stance phase and earlier in gait cycle allowing improved biomechanicals when compared to other orthotics.