This is the thicker material. I was actually looking for the pair most mechanics wear. I'm wearing them right now as a matter of fact, working in the Texas heat.i thought about sending them back but figured it will be cold one day.
I'm 5'11, 220lbs, wear 38/32. Ordered 38/34. They are a tad bit long so I would say they fit as other garnets do.
I love the two way zipper, handy pockets and snaps.
Ordering the thinner pair in multiple colors.