I've recently become a fan of Field Notes notebooks because they are small, made in the US and have a cool retro look that appeals to me. These notebooks are designed to be shoved in a pocket, which is convenient, but after while will probably cause the notebook to become bent or overly worn. Corter Leather is now offering a rustic styled sleeve that will hold one Field Notes notebook (and other thin 5.5 x 3.5 in notebooks) along with a pen or pencil.
The Gadgeteer, Protect your Field Notes Notebook with a Corter Sleeve
