The Skinny series came from the desire of some to carry a slimmed down version of our XM-18 3.5 folder. This slimmer version is perfect for the every day carry who wants a slightly less thick knife and a little bit lighter. Perfect for carry in dress slacks and any light fabric pants. The knife is the exact same size as the regular XM-18 but yet a little bit thinner in the handle and the blade. Slip one in your pocket and watch it disappear!