The Nike Free RN Distance LE (Berlin 2016) Women's Running Shoe features Lunarlon cushioning with large hexagonal flex grooves for more natural motion with the soft comfort you need for longer runs. MOVE NATURALLY The natural-motion outsole features hexagonal flex grooves that offer six points of flexibility, allowing your feet to move the way they were meant to. SOFT CUSHIONING The lightweight Lunarlon cushioning system delivers miles of soft responsiveness. It fuses soft foam and a lightweight Phylon carrier to deliver an excellent blend of plush comfort and durable support to go the distance. BREATHABLE COMFORT Single-layer, engineered knit helps keep your feet cool, while Flywire cables integrated with the laces wrap your arch for an adaptive, supportive fit.