I've been a fool for Spyderco Endura and Delica knives for over 35 years. And my current daily carry knife is their Pacific Salt 2 version of the Endura. The Pacific Salt 2 series uses H2 steel, which is the only truly "stainless" steel I have ever encountered. I have rather alkaline sweat, and living here in Arizona, we sweat a lot. Any gun or knife that is going to be carried concealed here is going to be sweated on. I have easily stained other "stainless" steels in guns and knives from having too much contact with my body secretions. But NOT with the Spyderco H2 steel blades! These resist corrosion in a truly revolutionary manner. My current one has been my daily pocket blade for over 6 years now and looks as new as they day I bought it. They only down side is that H2 steel does not retain an edge as well as traditional "stainless" steels and requires resharpening slightly more often. But I can live with that.