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).
2015 Nike Free 5.0, 4.0 Flyknit and 3.0 Flyknit Released Today
Nike Free 4.0 V3 Grey/Red Mens Running Shoes - | Discount Nike Men's Athletic & More - Shoolu.com | Shoolu.com
Nike Free 4.0 V3 (Anthracite/Black) - Consortium
Nike Free 4.0 Flyknit 'black' for Men | Lyst
Nike Free 4.0 Flyknit Men's Running Shoes Black White 831053-001 Sz US 9.5 / 43 | eBay