What is the Mc David Ankle X? Revolutionary sports ankle brace with a lightweight design to provide the highest level of ankle protection. Perfect for a chronically unstable or recurrent sprained ankle. When can I use it? Provides the ultimate ankle protection during sports. Ultimate support for your sprained ankle or unstable ankle. Which size do I need? Measure around shin just above the ankle & match with UK shoe size. If you are between sizes, please choose the larger size. Small/ Medium 18.5-26cm (7
- 10"): Size 6-9 shoe size. Large/X-Large 23-34cm (9
- 13"): Size 9-14 show size. How does it work? This rigid ankle brace is moulded around the heel & has hinges on either side of the ankle which allow forward & backward foot movement, but totally prevent rocking the ankle over to the side. The ankle sits comfortably in a high quality neoprene sleeve & the whole brace can be custom tightened using a Velcro™ strap.