Brand New 2019 Men's Nike Flex Experience Black / Anthracite - Dark Grey - Black” New in Nike Replacement Box Multiple sizes available 100% Nike Authentic Product Product Number : AO4484 007 Product Details: FLEXIBLE COMFORT. The Nike Flex Experience RN 8 delivers lightweight comfort that conforms to your every step. Soft knit material hugs your foot, while flex grooves in the outsole encourage an adaptive ride that's ready for wherever your route takes you.