Just curious as to how much outsole make, factors into your choosing of boots. I never personally put any thought into it as my first three pairs of what I would call proper boots (2xkarrimors and 1xmeindhl) all had vibram soles but my latest pair of salomans with their 'contagrip' soles are rubbish in comparison. Weather it be on wet rock, mud or snow/ice. TBH they would have been retired long ago if they weren't soo comfortable.