Insoles come in a variety of shapes, sizes, and price ranges. Some PC patients have found the following types of insoles to be helpful.
From Orthopedic article:
"Orthopedic insoles are available in a variety of shapes and designs. The function of the natural arch is to distribute pressure. Insoles with silicone gel absorb shock with each step and distribute pressure throughout the foot to prevent plantar fascitis and other ailments. Mid-size insoles are recommended for most cases of plantar fascitis and they provide comfort, since they are soft and form-fitting. The gel is located in problem area and prevents pressure from reaching vulnerable areas of the foot. Some insoles have blue silicone packs spread throughout the entire insole or just across the middle to protect the metatarsal muscles.
Many insoles are made of a spongy material rather than gel and can be cut to fit the size of the shoe. These insoles provide comfort and shock absorption, but focus on the entire foot rather than on specific areas. They often contain special materials proven to provide relief. Some are made of a light material called polyurethane covered with neoprene which provides support and absorbs shock.
Whichever insole you use, make sure you are also wearing shoes that are a comfortable fit. Insoles can be worn with a variety of shoe styles, and the same insoles can be used for several different shoes."
K6a patient "Orthopedics (insoles) designed with my specific feet molds; made of soft, pressure absorbing material"
K6a patient "Biomechanical Orthopedic inserts but prefer sandals to shoes"
K6a patient "InFeet. Made from BioMed - makes custom orthodics. At company, you stand on foamy material that makes imprint of feet and the way your weight is distributed on them. Made inFeet out of spongy-like material. Within a few days, could feel feet healing and they looked better. Today still has some of the sores on the degees of feet but they are smaller, smoother and can walk a lot longer before they really start to hurt. Only little issue is sometimes finding shoes to fit the insoles - but it's well worth the effort.'