I purchase the Merrell Siren Edge to wear on a 9-day trip to Scotland. I had previously bought a non-waterproof pair of Keens and was all set to wear them. However, the Merrells fit like a dream right out of the box and had a much nicer profile than the Keens. They were roomy in the toe box without looking so clunky and the sole was actually more cushioned than the Keens. They were also very lightweight. Sometimes shoes run short, but this sizing was spot on - a true 11M. My foot isn't particularly wide and they fit well with moderately thick socks. This is an ideal shoe for walking on a variety of paved paths and trails (compacted dirt & small rocks). For significant mileage off trails, I would probably want a more stable hiking boot.