Vertical Slit

Vertical slit covers, sometimes called wiros or vertical pocket covers, are designed to hold a folded booklet using a small pocket on the inside back cover. These do not take plastic pockets, but ideally a stapled booklet where the back cover slides into the pocket in the menu cover. They can also hold unstapled pages, however the section that slides into the pocket tends to bulk up a bit, limiting the capacity of the cover.