Most slim wallets manufacturers are large scale operations pumping out metal backed wallets for a premium price. On the other hand, Trove is an outlier, making fabric based slim wallets by hand and at competitive prices. I recently had the opportunity to visit the Trove factory in Leistershire, England and watch their wallet making process. Each wallet can be custom-designed before ordering and takes around 15 minutes to make before it is shipped out worldwide.
You can watch the entire process in the video tour here.