Here are all of our available folding pocket knives, including Locking Folding Knives, Slip Joint Knives, and Spring Assisted opening knives. Folding knives essentially carry their own sheath around with them, and are convenient to carry as they take up half as much room as fixed blade. Over the last few decades folding pocket knives have become the new norm as users move to the cities and urban living becomes more common. Commonly called Folders, folding knives now command the largest section of the cutlery market (with exception of kitchen knives). Modern folders now usually have a pocket clip, but most Folders did not in the past. Folders have be used for a huge variety of jobs, and vary greatly: everything from a tiny pen knife to a huge folding tactical blade.