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 - Second Hand Laufschuhe - Damen - Schwarz - 40 | Hardloop
Nike Free Metcon 4 White Black Gradient Men's - DJ3021-101 - US