The Nike Flex RN 2017 is a women's running shoe that delivers a flexible fit. The performance sneaker has an airy mesh construction. Flywire cables integrate with the laces for dynamic lockdown. A dual-density foam midsole provides great cushioning, and a durable rubber tread enhances durability. Offered in a black, grey, and hot pink color combination, the Nike Flex RN 2017 shoe is as fashionable as it is sporty.