The Crosslite is by far my favorite trail shoe. Light weight, very flexible, great traction. I love the aggressive tread and the flexibility makes you feel nimble even if you're not. Downsides? A couple for me. First, If you plan on running a 100 mile event in these, your feet had better be ready. I ran a 100K and by the finish, my soles were hammered due to the minimal cushioning. That can probably be overcome just by toughening up my feet. The other is that they are certainly not made for cold weather running. Get them wet from snow, and your feet will freeze. I will definitely be buying some more Crosslites. Love them.