The EVO Hinge Ankle Stabilizer, which features a removable plastic hinge, is easily converted to the traditional ASO (ankle stabilizing orthosis) EVO to facilitate treatment progression. The combination of the plastic hinge and the stabilizing strap technology provide even greater inversion/eversion control and protection against syndesmotic ankle sprains than the original ASO. The stabilizing straps function as both a stirrup strap to control the calcaneus and a figure-8 strap to stabilize the talocrural and subtalar joints. Fits left or right foot; available in sizes XS-2XL. Approved for billing code L1906.