Dave got one of these newfangled slim wallets, the Stealth Razor from Airo Collective, a Kickstarter project, the world’s thinnest wallet. Does it actually replace a full traditional leather wallet? How practical is it? Does the RFID protection work?

Dave got one of these newfangled slim wallets, the Stealth Razor from Airo Collective, a Kickstarter project, the world’s thinnest wallet.
Does it actually replace a full traditional leather wallet?
How practical is it?
Does the RFID protection work?