Nike Free 4.0 Running Shoes (Black, Dark Grey, White) 6.5 US Men : Amazon.ca: Clothing, Shoes & Accessories
Nike Free 4.0 Flyknit Running Shoes Sneakers Black White 631050-001 Women's 7 | eBay
Nike Free Flyknit 4.0 Review | Gear Institute
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).