Leather sole The Nike Free Run 2 is a performance running shoe with a great reputation Leather and mesh combine on the bootie-like upper to create easy entry and a comfortable, breathable fit But what makes the Nike running shoe outstanding are the deep grooves in the sole designed for flexibility so every step feels natural—like you're running barefoot Soft foam underneath supports the foot and provides lightweight cushioning This Nike Free Run 2 is offered in white, light grey, and black The Nike Free Run 2 is a performance running shoe with a great reputation. Leather and mesh combine on the bootie-like upper to create easy entry and a comfortable, breathable fit. But what makes the Nike running shoe outstanding are the deep grooves in the sole designed for flexibility so every step feels natural—like you're running barefoot. Soft foam underneath supports the foot and provides lightweight cushioning. This Nike Free Run 2 is offered in white, light grey, and black.