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 ¾ The deep heel cup offers reassuring and effective control of the rearfoot. There is an extra anti-pronatory feature within the heel cup so the rearfoot is actively supported. £29.95 + More Stay one steap ahead in the treatment of foot and lower limb conditions. Call the HealthyStep team on 01457 839549