Product Description - The DonJoy RocketSoc Ankle Support Brace is designed for superior stability, comfort and fit.  The DonJoy RocketSoc is intended to provide the treatment and prevention of common or acute ankle injuries.  The lightweight DonJoy RocketSoc has a low-profile design which eliminates that bulky feeling when worn with a shoe.  This ankle support brace allows you to maintain complete range of motion while controlling abnormal plantar flexion an inversion.  The DonJoy RocketSoc has an east to adjust peroneal forefoot (sides of the forefoot) and calcaneal heel lock straps which provides unrivaled support to the ankle ligaments that are most commonly sprained, which include the anterior talofibular, calcaneofibular and posterior talofibular ligaments.  This style DonJoy RocketSoc is the Drytex model which is a neoprene alternative, constructed of a unique nylon core and polyester lycra fabric that allows for improved airflow to keep ankles cool and dry.   

Size Medium on the brace is a Mens 8-9.5 and Womens 10-11.5.  The instructions are included