Low profile design constructed with non-stretch ballistic nylon for comfort, performance and durability. Lace-up design and trimmable figure 8 strapping locks the calcaneus into place & controls inversion/eversion. A full circumferential elastic strap secures all strapping to provide superior tibia/fibula compression and stability. Removable medial/lateral stays for enhanced proprioception and stability. Fits easily into athletic or street shoe. Universal to fit right and left.