Many folding knives do feature handles with a non-slip texture. The non-slip texture is often achieved through various methods, such as adding ridges, grooves, or patterns to the handle material. These textures help to provide a secure grip and prevent the knife from slipping out of your hand during use.Different knife models and brands may have different types and levels of grip textures on their handles. Some popular non-slip handle materials used in folding knives include textured G10, rubberized coatings, or patterned metal surfaces. It is always a good idea to check the product description or handle specifications of a specific folding knife to determine if it has a non-slip texture.