FormFit Flex-Edge Stirrup. Lightweight and breathable open –cell foam pads are Lycra lined, removable and three – dimensionally molded to provide extra comfort. A patented overmold technology incorporates a soft flexible edge onto the hard outer shell effectively eliminating pressure points on the ankle and increases comfort to your patient.  The pivoting heel strap allows for unobstructed range of motion in plantar and dorsiflexion.  Quick-adjust heel loop allows for a custom fit even after the brace is on the patient.  One size.