Otherwise the Streak 7 upper is made up of the same Flymesh, which isn’t incredibly durable, and lacing system. Once this is done there are no issues with the straps tangling during the run. I could immediately feel when it was twisted and was able to quickly fix the twisted strap however it is important when wearing the Streak 7, especially for a race, to give yourself a short warm up run to ensure the fit is right for your run. More than once my foot twisted a strap causing irritation in the midfoot. One caveat to the individual strap design comes from putting the Streak 7 on when untied and loosened up. These loops make up the lacing system for the upper of the Streak 7 and allows for a very tight locked down feeling which is easily adjusted to the runner’s foot. While the previous version of the Streak had a large piece of fabric with perforated holes for breathability the new mid foot wrap consists of straps that are each individually attached to loops. The big change here in the Streak 7 from the previous version is the mid foot wrap.

Nike zoom air