Functional ankle orthosis consisting of a rigid support associated with 2 adjustable and compressive straps. The L-shaped support effectively stabilizes the front drawer. The crossing of the 2 straps in the midfoot limits the movements of aversion and eversion of the ankle. Thin and light, it can be worn with any type of shoe with laces. Indicated for recovery of ligament injuries. Recovery of ankle fractures with or without surgery. And as a preventive treatment and / or resumption of sporting activity. It is also recommended for states of chronic laxity. Supplied in size 3 (38-40) for the left ankle.