I'll second a Spyderco. I currently carry around a Spyderco Police C07 (all stainless steel, serrated), and I had an Endura (lost it in the woods ). Spyderco knives are tough and some of the larger knives can be opened with a flick of the wrist. I also have a Kershaw Leek (assisted opener) that has served me well for almost 8 years.