Vulkan neoprene features a unique spiral lining which is critical in removing excess sweat to create a near normal environment around the injury. Features rear adjustable closure for comfort and fit · Additional figure 8 strap for increased support and compression and spiral stays and a stabiliser for greater support. Select either left or right foot. Size guide (measured around ankle) Small - 19-22cm, Medium - 22-25cm, Large - 25-28cm,