Nike Free 4.0 Flyknit Men US 9 Red Running Shoe - Walmart.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).
Tips for Buying Minimalist Barefoot Running Shoes. Nike.com
Nike Air Zoom Pegasus 40 Big Kids' Road Running Shoes. Nike.com
A Closer Look at the Nike Free 4.0 Flyknit "Bright Crimson/Hot Lava" | Hypebeast