Ask HN: How to reach out to big footwear brands in order to tie-up with them?

Hi HN Community, I've been working on this startup [https://unfake.carrd.co] where we are helping footwear brands fight counterfeits effectively. We are doing so using the power of NFC tags combined with the uniqueness of NFTs. I've made a prototype. You can check it out on the website mentioned above or here: https://youtu.be/fHCxnHlQIjk I would like to know the best possible way of reaching out to big footwear brands for demonstrating them the concept in order to tie-up with them. Let me know if you have any other suggestions/feedback as well. Peace Hammad Nasir