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 Review
Nike Free 4.0 Flyknit Review | Running Shoes Guru
NIKE Free 4.0 Flyknit Women's Shoes Dark Grey/Voltage Green Size 7.5 | eBay
Sneaker of the Week: Nike Free 4.0 Flyknit | GQ
Nike Free 4.0 Flyknit Women's Size 8 Running Shoes Pink Game Royal *See desc | eBay