Nike Free 4.0 Flyknit Women's Size 9 Running Shoes Fire Red Burgundy

The Nike Free 4.0 Flyknit is a fantastic shoe. If you want something with a minimal upper, a flexible sole, and a roomy toebox these should be at the top of your list of options to try. The Flyknit upper of the Free 4.0 is minimally structured. No overlays, no heel counter, just a stretchy woven mesh with a few Flywire bands on either side of the lace rows to lock the foot down. It feels like a sock, and it hugs my foot in all of the right ways. Not too tight, not too loose. Just perfect. The heel and midfoot are snugged in tightly, and the forefoot opens up so that the tight weave does not constrict or squeeze the toes. The entire upper flexes and moves with the foot in a way I have rarely experienced in a running shoe. The upper mesh is open in the midfoot and forefoot to provide for some air flow. Like the upper, the sole of the Free 4.0 Flyknit is super flexible and moves really well with the foot. The sole is typical of other Nike Free shoes in having individual pods separated by deep grooves to maximize flexibility.