I bought these looking for a light, aggressive trail runner. They are both. They run a little low in the heel and ride a little higher in the forefoot due to the aggressive isomorphic spikes. I have put about 140 trail running miles on these and here are my PROS: great traction, substantial cushion, lightweight, roomy toebox. CONS: had to replace laces (always slipping), they squeak with EVERY step especially when wet!, when pulling the laces, it ripped the top of the toebox. I would rate these as adequate, but needs improvement.

These shoes are comfortable, in large part due to the very roomy toebox. They are light, but still provide adequate support and protection. In dry conditions, the traction is excellent. However, in wet conditions, I found them to be very slippery. On wet rocks, they totally failed to grip. If your local trail conditions are typically dry, they may work for you; if you have rocky trails that get wet often, look elsewhere.