Tips for Buying Minimalist Barefoot Running Shoes. Nike.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 Men's Free 4.0 V5 Running Shoe, Size 9.5
Nike Free run 4.0 womens Blue pink Athletic shoes size 9 642200-461 - beyond exchange
Nike Free Flyknit 4.0 Multi-Color Men's - 631053-004 - US
Nike Free Flyknit 4.0 Review | Running Shoes Guru
Nike Free Flyknit 4.0 2020 Release Info | SneakerNews.com