According to the SOG Website, the Flash II blade is made out of AUS-8 (58-59 HRC), features a drop point blade shape which is partially serrated. It has a reversible "low carry" style clip. The handle is made out of glass reinforced nylon. The Flash II has the SOG Assist Technology, for faster deployment, and it has a piston locking mechanism which allows the blade to locked in place.
Read the full review here -> SOG Flash II Folding FSA98-CP Partially Serrated 3.5" Blade ~ vdmsr