I lost my nanofoil before sticking it on. A single purchase of the nanofoil is unfortunately not possible. If you have lost your nanofoil, please contact our customer service via our contact form to find a solution. Related articles Can I use wireless charging with Backflip®? How do I attach my Backflip® to my smartphone? What exactly is the nanofoil? You can read the instructions for use of Aura here. The Declaration of Conformity for Backflip® can be found here.