These are some awesome, lightweight shoes. I wear these all the time for trail running and light gym use (ie strength training at the climbing gym). I also love these for the crag - with the quick lacing system they are super easy to throw on and off between climbs, and since the shoes have a soft heel, you can slip them on no problem. The sole is pretty thin/sensitive, so I would not recommend these for super rocky trails. I love the Fjord color as well! I've had them for about a year and the color is still super bright and doesn't show too much dirt. I am typically a US 10, and sized up to a 10.5 US (EU 42.5), which is typical for my other Sportivas as well.