Thin leather wallet

I wanted a slim, minimal, and cheap leather wallet. I was unable to find one, so I designed my own. My wallet currently holds 12 cards or pieces of paper and still I can barely feel it in my pocket. The leather expands if you need more cards. The design is such that you can slide the first card in and out of the wallet without taking the wallet out of your pocket.

This is a work-in-progress and I am working on a new design to avoid the tab at the top.

Instructions: cut this design in thin