I wore these hiking for two weeks in Yellowstone, Grand Tetons and Glacier National park. I hiked 70 miles and walked around many, many more miles. Didn't really break them in much before and they held up fine. They were comfortable and were waterproof as described. We walked through countless small streams and mud and my feet were never wet. I found them to be very small though. I originally bought them for my son whose foot is about 2 sizes bigger than mine and I wore them instead.