I have always known and respected the Quality of Danner products, however, I was hesitant at first to order these Zig Zags, only because the photos I've seen do not show the true depth (traction properties) of the outsole. The images make it seem that the outsole is "thin" with low-depth lugs. Upon wearing them for a few weeks however, I can assure you that this outsole is fantastic, and one of the very best designs I have ever seen, insofar as traction and "gripability" is concerned! (If interested, there is a much better photo of the outsole of this awesome boot at totalqualityphoto.com.) The depth of the lugs is quite good (about 1/4 inch), and the pattern gives great traction on all surfaces, even wet pavement. I am also fond of the fit, construction, Gore-Tex and weather-proof design! All in all, a great product, and I highly recommend Danner!