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 Flyknit Mens Running Shoe Wolf Grey/Blue/Black717075-010 - Walmart.com
Nike Free 4.0 Flyknit 2015 - LetsRun.com
Free 4.0 Flyknit 'Black Green Orange' | GOAT
2015 Nike Free 5.0, 4.0 Flyknit and 3.0 Flyknit Released Today
Size 7 - Nike Free 4.0 Flyknit Blue - 717075-401 for sale online | eBay