Nike Free 4.0 Flyknit Running Shoes 717075 003 Grey Black Volt size 7 | eBay
Nike Free 4.0 Flyknit Sneakers - Farfetch
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 Flyknit 4.0 Review | Gear Institute
A Closer Look at the Nike Free 4.0 Flyknit "Bright Crimson/Hot Lava" | Hypebeast