The Vulkan Silicon Ankle Support is made using the highest grade of neoprene for superb fit and durability.Vulkan Si has been designed uniquely with silicon technology for unbeatable protection and performance. Silicon works in unison with the highest grade neoprene to provide extra support around the important joints and muscles enabling seamless support to give superior comfort and flexibility.The unique silicon support around the contours of the bones and the lateral and medial ligaments provides compression, support and confidence.Superior heat retention allows increased blood flow and in turn oxygen to the injury speeding up recovery. This support is ideal for those common ankle sprains where ligaments connecting the ankle are stretched or torn.Air holes allow the skin to breathe whilst the seamless construction provides luxurious comfort and total flexibility.