I have been carrying a Vargo Sobata 398 a s of late. It has a titanium/ceramic composite blade, 'sintered titanium'. It's completely corrosion resistant and unlike regular titanium alloy knives, it has been holding an edge. It's more like titanium than ceramic as far as the blade is concerned. I have been cutting vatious materials like cardboard, rope, wood, meat. No chips yet. It has a micro toothy edge I think. It doesn't feel screaming sharp, but yet it cuts great! One of the most interesting knives I have ever owned which is saying something cause I have owned a lot of different knives! I have a small collection, it was much bigger, but I sold a bunch of them cause I moved across the country. Anyway I am putting this knife through it's paces! Great knife thus far and fun to flip!