Made with at least 20% recycled content, the Nike Free is designed for your runs, workouts and everyday activities. With a breathable mesh upper that incorporates at least 87% recycled content by weight, it combines the flexibility you love with reliable support that keeps you close to the ground, as if you were walking barefoot. The new cushioning is lighter, softer and more dynamic than previous versions, so you'll be more comfortable with every move, whether on pavement or track. This redesigned model features a more responsive, lighter and more flexible foam than previous versions. Laser-cut grooves on the sole provide exceptional flexibility. Rubber in the forefoot and heel provide added durability. The upper is made of a breathable mesh material that gives your foot room to expand as you run. Flywire technology is integrated into the laces on the side for optimal support. As with previous versions of the Free, the heel offers the same cushioning you love for a comfortable fit. The heel tab makes it easy to put on and take off the shoe.