Wearing rocker bottom shoes can help train good posture and prevent back and joint problems. Regularly recommended by Podiatrists, rocker shoes help to prevent high impact motions by promoting the natural style of walking. ShoeMed stocks a range of specialist curved sole shoes including Joya Shoes, YDA, MBT and Finn Comfort. In all Joya curve rocker trainers, the metatarsal roller helps to create a balancing effect to promote exercise and muscle strengthening.