Products often claimed to be Plantar fasciitis insoles are rarely designed specifically for the condition. Healthy Step have designed just such an insole. Plantar fasciitis is the most common cause on pain under the heel, which is also called plantar heel pain, policeman’s heel, postman’s heel, and plantar fasciopathy. It is caused by thickening, inflammation, and degeneration of a fibrous band under the foot. For more on plantar fasciitis, Click here.