As a videographer, I used to keep 3 SD Cards in a credit card slot in my wallet, and that has literally saved the day on multiple occasions when on a shoot. However, after a while, the cards would of course start to get destroyed. If this product already existed, I would have simply purchased one, but I couldn't find anything on the market that was this thin while providing structural protection to the cards. I now carry this every day for peace of mind and I hope you find it as useful as I have. **SD Cards not included.
