How about the classic design of Moleskine notebooks? Like it? You may like to use the Classic Booktype iPhone 6 case to guard your handset.
The Classic Booktype Case is a folio styled protective case inspired by the design of Moleskine’s notebooks, and it comes with two models for iPhone 6/6 Plus. As we can see from the images, both iPhone 6 case and iPhone 6 Plus case show off a low-key and elegant design and is made of black polyurethane with an inner hardshell cradle in order to protect your iPhone from shocks and scratches. There is a card slot in the back of the case to hold your credit card, and an iconic tone-on-tone elastic band securely keeps your handset and card in place.
The Classic Booktype iPhone 6 case and iPhone 6 Plus case cost $34.9 USD each. If you like them, jump to Moleskine official site for more details. BTW, if you need more choices, you may like to check Draco Flip Leather iPhone 6 case and more via following tags.