Nike Free 4.0 Flyknit Review: The Best Nike Free Yet?
Lifting The Bar » Review: Nike Free 4.0 v2 Running Shoes
Have used these Nikes back in 2015 ( Nike Free 4.0 v3). Personally loved the comfort of these shoes. I can't find these anymore where I live ( not in the US).
Nike Free 4.0 V3 (Anthracite/Black) - Consortium
Nike Free 4.0 Flyknit Black Men's - 631053-001 - GB