I just finished this off today. It was so easy and I'm new to sewing. I made this for my vacation coming up so I don't have to carry my big purse around to all the theme parks.
One side has velcro for my cash and one side has no velcro for my cards. The wallet has a snap closure. This is thin enough to slip into my front or back pocket.
This was made with my grandmother-in-law's vintage fabric.