Men's size 10...essentially used once and it wasn't even outside. I love these but having surgery and will be unable to wear them so figured I'd find someone who will and make a few bucks back. The Nike Free RN Flyknit 3.0 is a running shoe that is designed for short training runs of up to 5km. It has a lace-free, slip-on design and a wide base that is suitable for wider feet. It also has a super flexible platform that allows your feet to move naturally.