Runners looking to go the distance will be ecstatic over the Nike Free RN Distance running shoe. This shoe provides runners with the blend of two worlds, creating an experience like no other. A supremely lightweight structure provides runners with a natural fit and feel. The Lunarlon cushioning system makes sure the foot is supported while giving runners feedback with each and every step of the run. Upper: Single-layer engineered knit upper with integrated Flywire cables wrap the midfoot and provide ventilation and support. An anatomical heel secures the back of the foot comfortably. Midsole: Lunarlon cushioning provides superior lightweight responsiveness. Made from a blend of Phylon and soft foam to ensure lasting support throughout the run. Outsole: A natural movement-focused outsole made from flex grooves provides six points of flexibility. Solid rubber enhancements under the toe provide runners with better traction at toe-off.