The shoes fit great and seem well built. First time I wore them, I was just working out in the park. Wore them for about 2 hours, running, climbing, and crawling. They were very comfortable and my feet were not tired when I was done. They are kinda heavy, but I am used to that. Update....I have been doing more &#34;trail&#34; exercising. The grip on these shoes are OUTSTANDING. Up hill or down hill, no traction loss.  I will whine a bit about comfort. After several hours of hiking and running up and down some serious hills, my feet were sore. The arch support is not so great. Not sure I would suggest for actual &#34;running&#34;.