Strapping a bunch of cards together with an elastic makes for a thin wallet – and also necessitates rifling through your cards to find the one you’re looking for. Zenlet foregoes the traditional stacked card design often employed by simple wallets, instead sliding open to reveal all cards (up to 6) within, spacing each one out to help you quickly find the right one. Else, it’s 10mm thin, carries along other small objects like keys or coins, clips shut to become waterproof, and sports one RFID-shielded wall to protect your credit/debit cards while letting another on the flip side, like a bus pass or the like, work freely.

Find it at Kickstarter – $29+