These look rather nice– linen covers, which I love, and in attractive colors. Best of all, this pocket size notebook is American-made in Michigan, and still only $12! At the moment, they seem to only offer lined notebooks, except for a sketchbook in a larger size.
More details at 3.75″ x 5.5″ HARD LINEN COVER | Shinola®. Make sure you go to the “process” tab on the page, and watch the really cool video about how these notebooks are made! They also sell watches, bicycles and various leather goods.