An orthotic device includes a rigid support member and a removable inner liner having a contact surface adjacent the support member formed of a non-skid or non-slip material. The liner may include a flap or pocket for receiving at least a portion of the support member, at least at first strap having a first end attached to a first region of the liner and a second end fastenable to a second region of the liner for securing the orthotic device to the wearer, and a patient interface surface.