Filleting knives are commonly used for separating meat from bone and skin - the flexible blade is able to navigate around tight spaces, ensuring its wielder has ultimate control. Often used for filleting fish (hence the name), the thin blade can work around the fish's skeleton and even work in skinning. 

The Victorinox Fibrox Fillet Knife has a straight edge, a flexible blade and an ergonomic handle that makes it the perfect tool for filleting in the right hands.