Thuasne Silistab Achillo Ankle Brace S1 Grey 2355 is an exceptionally high quality, high performance brace that provides support and relief from pain associated with Achilles tendon problems. It is simple system of two heel pieces that can be fitted together to offload the Achilles tendon - two heights possible (13mm or 8mm).A second pair of heel pieces are also included to be worn on the other foot to balance out both sides. It provides protection and reduces vibrations using an anatomically shaped and protective tendon guide silicone insert with dimpling that is positioned over the tendon.The anatomically shaped Silistab Achilles Tendon Ankle Support is made from a compressive knit that provides a proprioceptive and analgesic effect.Fabric is soft and seamless silicon for a comfortable fit and wear.