I bought this shoe after it was highly recommended by Runner's World. This is my first true trail runner, and they are amazing. Incredibly light, and able to handle the medium terrain i took it through. Grass, dirt, damp (almost muddy) ground with all sorts of twigs and rocks, etc. This shoe handled it all quite well. Being a low top, ankle support is obviously not enough for extreme terrain, but then you're into hiking boot territory anyway. These shoes are great for off road trails