A wallet in your back pocket is easy pickings if someone takes aim at you in a crowd. Also, it caused me back problems on a long trip. Living in Southern California, EVERYTHING is a long drive. Heck, the work takes an hour one way. So I wanted a minimal front pocket wallet. After researching, I found that some others (carbon fiber, metal, etc.) can start wearing in the pocket. I wanted a high quality leather although I knew it would be a tone thicker. I took out my wallet as soon as I got home because it was very inconvenient. That meant there was a time I forgot about the ant walking out the door without him. I love this wallet. I rarely take it out of my pocket. Comfortable leather, never feels like I'll drop it when pulling it out of my front pocket. I completely forgot he was there. Months later, I still stop and clutch my bag to make sure I have my wallet before heading out the door. It's not magic, you can still see it in your front pocket, but the shape is about the size of several credit cards. I have 9 items the thickness of a plastic credit card and about 6 insurance cards the thickness of a business card etc. and 6 paper bills with a tick in them. Its thickness is 5/8 inch (less than 16 mm). The seams are perfect. The leather is soft but strong. It lasts 10 or 15 years and doesn't wear out. So I just press the bottom seam to pull the cards out. It pushes the cards out just enough for me to grab and pull out prefer but I'm very happy and am considering buying two more in case I lose it or it wears out in less than 15 years But one!.or two.you will not regret it. These are the best minimalist wallets in the world.