Ground Feel 3.5 Zero Drop 5 Flexibility 4 Toe Box 5 Weight 6 Comfort 4 Fit 4 Traction 3 Durability sole-5 upper-none Performance 4 Cross Training 2 Design 2 Aesthetics 4-they're definitely loud... After having used the original minimus trail for well over 800 miles with still some life left in them, most of which where on road, I was ecstatic to hear they were releasing a newer version that nearly weighed half as much. The fact that they were touting their horn about the soles durability made me even happier as I hate having to drop money on new shoes. After about one week of having bought them from my local newbalance store, the interior around the heel came unglued, so I exchanged them for a new pair. By now I have gotten ~100 miles on my current pair. The entire interior heel lining has basically peeled off. On both shoes. and the part of it under my Achilles has a hole in it, meaning every so often It makes my heel bleed, leading me to return to my trusty original minimus's or vff's with socks and band-aid. In the end, they were to concerned with saving weight to give these shoes a working upper.