TurboMed XTERN Ankle Foot Orthosis (AFO) W/ Upgraded Ipow Tendon Support Strap. Made out of incredibly strong dynamic thermoplastic elastomers it can take a lot of force and still provide a lot of therapeutic resistance. This xte4n AFO is adjustable to fit multiple different size feet. it has been used but relatively lightly and is still in good condition. Was over $1000 brand new. PLEASE SEE ALL THE PHOTOS CAREFULLY THANK YOU.