Shop X-Line X-Line Products Designed by in-house podiatrists, our X-Line range offers precision treatment for a range of foot and lower limb conditions. See our full range of products below. HomeShopX-Line X-Line Plantar Fasciitis Insoles The PF insole is one of very few foot orthotic devices specifically designed for heel pain caused by plantar fasciitis also known plantarfasciopathy, heel spurs, policeman’s heel, or postman’s heel. £27.50 + More Stay one steap ahead in the treatment of foot and lower limb conditions. Call the HealthyStep team on 01457 839549