Cork fabric is a beautiful material to work with in designing wallets that suit a particular purpose. Being super thin already there is no excessive wastage that one associate with making a traditional leather wallet, which is done to give the appearance that the leather wallet is thin. The other advantage of cork fabric is that it's super light so much so that you are essentially carrying the weight of whatever you store inside the wallet. Being slightly elastic the wallet pockets will expand to accept more cards than originally designed and return to their original setting once the cards are removed.