Darco Vinyl Protective Footwear Post-Op Shoe is a rocker sole which reduces plantar pressure on the forefoot and heel by over 25 percent. It provides more rigid control under the metatarsal heads. It provides uniform security without the pressure points of buckles and straps. The ankle strap seats the foot firmly in the sole and eliminates heel friction. It has removable insole fully customizable with over twice the padding.