Powerstep Protech Control Full Length Orthotics Size 9-9 1/2, Women's 11-11 1/2
Foot Control System:  Unique polypropylene support shell is deeper w/ stronger arch firmness and angled heel platform.Poron Comfort Cushion:  Extra Poron cushion reduces heel impact.Shock-Absorbing Materials:  Fabric covered Poron top layer provides resilient, durable shock-absorption and cushion.Heat and Friction-Reducing Anti-Microbial Fabric:  for dryness.Built-In Extrinsic Post System:  Support shell is custom designed with a 2-degree heel post built in for proper foot positioning.Encapsulated for Enhanced Comfort:  Support shell is encased in double layered material of Poron/EVA for cushion, comfort and support.