Richard Mackie wrote a review of Chaco Z/2 Unaweep Sandal - Backcountry.com Exclusive - Men's on March 9, 2012
I started off on a 70 mile thru hike of Glacier national Park with a new pair of 200 dollar hiking boots. They ended up killing my feet and by mile 7 I was wearing my friends Chacos. Man these really saved me. I did the hike in the originals without the toe strap got back and immediately bought a pair of my own but ended up buying the toe strap version instead. They are very rigid and yet comfortable. They will not come off your feet. This also makes them hard to put on, but that is a trade off. I would prefer not to have the toe strap looking back on it but love these all the same.