Features Butterfly shaped silicone pad surrounding the Achilles tendon offers optimal compression and massage Concentric ripples on the pad provide compression and massaging effect to reduce oedema and relieve pain X-shaped pattern functions like Figure Eight taping to limit excessive motion for ankle joint stability Interwoven bands located at Figure Eight centre provide anatomical fit and comfortable wear Lightweight, breathable fabric provides improved moisture reduction and comfort over an extended period of wear Ankle activator is Unisex and available in Right or Left ankle options Sizing Guide Measure circumference just above the ankle bone. Small 18.0 – 20.0 cm / 7 ⅛”– 7 ⅞” Medium 20.0 – 22.0 cm / 7 ⅞”– 8 ¾” Large 22.0 – 24.0 cm / 8 ¾”– 9 ½” X Large 24.0 – 26.0 cm / 9 ½”– 10 ¼” XX Large 26.0 – 28.0 cm/ 10 ¼”– 11”