For 2016, the Nike FREE running line-up is all new. Last year there were New Nike Free Running
three Nike FREE models: FREE 3.0 Flyknit (MSRP $140), FREE 4.0 Flyknit (MSRP $120) and FREE 5.0 (MSRP $100). This year there are four models: FREE RN Motion (MSRP $150), FREE RN Flyknit (MSRP $130), FREE RN (MSRP $100) and FREE RN Distance (MSRP $120).You may have noticed each 2016 FREE shoe has RN in the model name and it doesn’t mean registered nurse. RN is an abbreviation for run, and is used to distinguish the FREE running models from FREE fitness training models.
In addition to RN being added to the model name, a major update to the FREE RN line is the inclusion of a Lunar core foam. The use of the Lunar core foam does not significantly change how the FREE RN models feel compared to their predecessors, but the new models are just a touch softer. The one exception is the FREE RN Distance, where the Lunar core foam delivers a noticeably softer ride than any other FREE models, past or present.Another big change with the FREE RN line is how the sole of the shoe functions. The FREE RN Motion gets a stand alone design, and it is the most flexible and expansive platform of the FREE RN nike free run sale
shoes. The foot lengthens and widens during ground contact and the FREE RN Motion platform is designed to work with this movement to the greatest degree. In this respect, the FREE RN Motion is the most “FREE” shoe in the line-up and is the closest to barefoot. Thus, it replaces the 3.0 Flyknit in an evolutionary manner.
And like the 3.0 Flyknit, the FREE RN Motion has a 4mm heel-toe offset and a Flyknit upper.The FREE RN Flyknit and FREE RN have a platform which is designed to have greater expansion than the 2015 FREE shoes, but is not as expansive as the FREE RN Motion. The FREE RN Flyknit and FREE RN replace the FREE 4.0 Flynknit and FREE 5.0, respectively. However, the 4.0 had a 6mm offset and the 5.0 had an 8mm offset. Both the FREE RN Flyknit and FREE RN have 8mm offsets. In fact, they have the same platform. The difference between the two shoes is the upper. The Flyknit is more sock-like and allows for greater freedom of movement compared to the engineered mesh upper of the FREE RN. Additionally, the Flyknit upper results in greater toe spring, making the shoe feel more dynamic than the regular FREE RN.