Before all these rubber soled caulks you see now there was two kinds of leather in caulk shoes, sole leather and upper leather. Kuliens still uses sole leather. then there is Kip leather which costs extra at Kuliens. Supposed to be lighter and tougher.
Maybe some of the leather experts can explain that stuff. I am no expert.
I will say this though. It is a sad day when a logger thinks WESCOs are a top of the line shoe. If you ever had the opportunity to wear Highlines or Johnsons you would know of what I speak. My Dad used to say Grays Harbors were a first rate shoe too but that is way before my time.
On the other hand Currins were like strapping a brick to your foot so I guess it wasn't all roses back then.