Bicycles Network Australia (BNA) is one of the longest running Aussie cycling sites and communities and in their review, they captured the essence of the Zilfer Cycling Wallet.
"Imagine a wallet that you can use everyday and when it is time to ride, you simply put the same wallet in your jersey pocket and away you go. There is no shuffling of cash, cards and mobile phones into waterproof pouches; you don’t even have to think about it. The practicality and convenience is the compelling advantage of the Zilfer phone wallet – you can use it all the time and it fits nicely into the jersey pocket."
The review is detailed and you can read it here: Review: The Elegant and Practical Zilfer Phone Wallet is Ready to Ride