I make all of the wallets from up-cycled inner tubes. I mainly use bicycle tubes, as I love riding and this provides a strong connection to cycling. I line every wallet with a recycled fabric made by https://www.challengesailcloth.com/ It is made from recycled plastic bottles. It comes in several colors and gives the wallets a little bit of rigidity and style.
I sometimes use old car and truck tubes on my larger wallets, because they are larger. This allows for a seamless wallet that is stylish and sensible. Check out my unique clutches and passport wallets for more details.
These are all for sale on my Etsy site. Check them out!