If you've been wanting to slim down your wallet, but can't fathom ditching your perks cards or even going cash-less with a card case, you're going to want to check out Bellroy's new Note Sleeve. The Note Sleeve ($90) is a fully-featured billfold without the cumbersome size and some clever design trickery that helps keep your wallet slim and everything in it easily accessible. Link
Bellroy's RFID Edition Note Sleeve might just be the ultimate billfold
The functional wallet adds some high-tech protection.