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).
The Men's 2015 Nike Free 4.0 Flyknit • KicksOnFire.com
2015 Nike Free 5.0, 4.0 Flyknit and 3.0 Flyknit Released Today
Nike Free 4.0 Flyknit Orange - 717075-600 for Sale | Authenticity Guaranteed | eBay