Nike Free 4.0 Flyknit - Mens Shoes - University Red/Black-Total Crimson-Racer Blue | Pro:Direct Running
Nike Free Flyknit 4.0 2020 Release Info | SneakerNews.com
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 WOMENS FREE 4.0 V3 col 561 Running Shoes
Nike Free 4.0 Flyknit Black Men's - 631053-001 - GB
Lifting The Bar » Review: Nike Free 4.0 v2 Running Shoes