Nike Free Run + 3 Men's Running Shoes Blue / SilverNike Frees are different than traditional athletic shoes. They're designed to let your feet move more freely and naturally, Which means your muscles will be doing a bit more work than Demanded of them in some other athletic shoes. Nike encourages you to get used to them Gradually for a safer, more effective and more enjoyable experience.Nike Free Shoes feature flexible and lightweight, so you will not feel much resistance while running. V3 Nike Free shoes will make you feel more in touch with the ground, and thus allow offering enough protection to Ensure Your feet safe from the dangers of running barefoot.