The Sinner utilizes our proprietary Brous bearing system to achieve an incredibly smooth flipping action. Combined with 3D milled carbon fiber scales and titanium liners, it is a lightweight yet incredibly solid feeling knife. The checkered titanium backspacer is a design unique only to Sal Manaro's knives and adds great grip. The forward finger choil on the Sinner offers the ability to choke up on the blade to increase grip and precision during cutting tasks. The blade of the knife is made from heat-treated D2 Tool steel. The Sinner has a deep carry pocket clip and lanyard loop which can be switched for right- or left-hand use. The Sinner is a rock solid knife that can fulfill nearly any task it is given. Its light weight and sleek design makes this a great choice for every day carry.