These shoes are the epitome of a mixed bag for me. These only became available for pre-orders late last week, so I've only actually had them in my possession for the last 3-4 days. In that time, I've used them for a total of 3 pretty standard HIIT workouts (burpees, box-jumps, push-ups, some lifting, some squatting, etc.). The fit of the shoe is wonderful. The sizing presents a shoe cut very similarly to the Metcon 4s. The fit and feel of the shoe is also quite similar to the Metcon 4. The stability they offer is pleasantly familiar while also offering a bit more heel padding and flexibility toward the front of the shoe. The inclusion of +8MM heel inserts for squatting movements is wonderful. I had the opportunity to use them for a squatting strength set and wall-ball workout and you can really feel the difference when the inserts are in the shoe. The Bad: If you refer to the photos, the fabric upper has already begun to separate badly from the rubber portion of the shoe. I sense that given another workout or two, there might even be a hole in the front of my shoe. This is especially alarming given that, again, I only did a total of three workouts in these shoes and I don't think they were subjected to anything particularly punishing. I would wager these shoes have still seen less than 100 burpees total. That does not bode well for the durability of these shoes at all. In sum: they look great, they fit great, they feel great, they perform great, but their shelf life may be as many workouts as you can count on a single hand.

They nailed this one. I recently returned the Nano 9's after beating a pair of Nike Free Versatility to death for close to two years. I do HIIT classes everyday. I wandered into the 5th Ave store on Saturday and picked these up. Run perfectly true to size and the toe box is not some exaggerated mess like in many shoes. Felt great in my first class, good sign. Great work Nike.

Super comfy shoes. Love the new look and design. Only thing is they are much softer than the previous models. If you plan to do any squats make sure the wedges are in or better yet throw on lifters. Other than that great shoes. Hopefully they hold up as well as the previous models.