The Flowfold MINIMALIST is made out of cloth that contains Carbon Fiber, Kevlar, Pentex or Polyester matrixes, making them extremely durable while also maintaining a weight so light that they float on water.
Packing in too many cards, receipts or other items may eventually stretch the wallet which means if the user goes back to having less items held inside they may slip out as it has been stretched to accommodate more than what it is holding.
The high performance sports nylon line of Big Skinny wallets are water-resistant and tough enough to machine wash regularly. That means you can jump into a swimming pool and or take long bike rides or work extra hours on construction site or garden forever! Big Skinny wallets will just dry out in 1-2 hours from a full soak.
Some wallets have a rubber logo sewn onto the outside front. Because it is thicker than the wallet material, it can catch slightly when transferring the wallet in and out of a tight pocket. It's worth mentioning, even though it hasn't really been a problem for the many years I've had my wallet. Also, the logo is a handy way to mark the front corner, for easy orientation of the wallet when swiping RFID cards.
The see through casing allows users to place their ID facing out as to make it easier to show ID in that it will not have to be taken out of the wallet.
There is a removable money clip inside of the wallet that allows for users to switch to an even more minimal carry by ditching the outer shell for a while and only using the clip.
Kickstarter version doesn't have the best electronics. It can be better in the production version. The electronics can be removed so it can be just a simple and elegant wallet.