BSN Jobst Safe-T-Sport EZ-On Wrap Around Ankle Support Large, Black, Neoprene and Tri-Permalon, 12-1/2" to 14-1/2" Circumference, Open Heel.

Supports and stabilizes the ankle while allowing for full flexibility.
Made with sports neoprene and Tri-Permalon. The foot and ankle portion is made of neoprene which provides therapeutic warmth and compression to the joint and soft tissues. The top portion is made of a breathable Tri-Permalon foam to let the heat dissipate and air circulate.
Wide, double elastic strap wraps around the joint for increased stability. Figure-eight strap design simulates taping of the ankle and provides arch support.
Simple hook closure allows for quick and easy application.
Open heel comfortable wrap support.
May be worn under or over socks.