Color: Black系 (likely meaning "black or similar colors") Manufacturer's Suggested Retail Price: ¥18,700 (tax included) Features: Get running in the React Infinity 4 and leave your worries behind. With soft, responsive React foam and Flyknit support updated for the best fit yet, you can run anywhere, anytime, and escape the worries that always linger in your mind. With high-rise foam and a design that provides support with every step, you can feel the ultimate sense of security and go further, faster, and longer than ever before.