The Nike Free line of running shoes was originally designed to mimic barefoot New Nike Free Running
running on grass. All shoes in the line are characterized by an extremely flexible sole, and the three models vary in upper construction and the amount of sole cushioning.The Free 5.0 has the highest heel-forefoot drop and a more traditional, though still fairly minimal, upper. The Free 4.0 has a Flyknit upper with a tongue and it occupies the middle ground with regard to amount of cushion and structure. The Free 3.0 is the most minimal (lower number = more minimal) of the three shoes with the thinnest sole and a Flyknit upper with no tongue. It’s basically a sock with a sole attached.I’ve long been a fan of the Free 3.0 line.
The original 3.0 remains one of my all-time favorite shoes, and I’ve run in several of the subsequent nike free run sale
iterations. However, I passed on the 2014 version of the Free 3.0, which was the first version to incorporate the Flyknit upper. I’d heard that the upper was pretty tight (it needs to be somewhat tight since it is what secures the foot to the sole – the laces do very little), and the $140 price tag was a bit much to swallow. However, it’s one of those shoes that readers have asked about a lot, and several have suggested that I try it.I was recently contacted by Nike about the new Free line, and they sent along a pairs of the 2015 Free 3.0 and 4.0 for me to test out. I’ve now been running in the 3.0 for several weeks, and it’s time for a review. (Disclosure: The shoes reviewed here are media samples provided free of charge by the manufacturer.)