Rubber sole Breathable, stretchable yarn hugs the foot above the toes to provide a snug feel. Flywire technology loops through the laces on the side for midfoot containment. Lightweight, low-cut design provides stability and helps keep you low to the ground. Durable foam that feels lightweight and comfortable cushions your foot as it hits the ground. Pull tab and stretchy integrated tongue help create an easy-on, easy-off fit. Invite a sense of calm to join you on your run with the grounded look and feel of the Nike Free Run 5.0 Next Nature. Its low-cut design is all about stripping down the nonessentials, leaving you free to concentrate on your stride and the nature around you. Plus, the breathable knit upper and low-cut design provide flexibility and stability while lightweight foam underfoot gives you the comfortable cushioning you need to power through your route.