This is the best model Kershaw offers,
US made with Sandvik's wonderful 14c28n.
Unique to Kershaw this is a Swedish stainless "razor" steel. It has excellent corrosion resistance and takes a lightsaber edge, edge retention is decent too. In all it is the best steel to be had at the sub $50 level. It is mounted on phosphor bronze washers and G10 scales with a liner lock.
It is feather light.
This blade is the best EDC knife for the money, period.