Nike Flex Experience RN 7 Running Shoes. Ensures maximum lightness from start to arrival thanks to the engineered mesh upper, lightweight and flexible sole. Engineered mesh upper for perfect breath ability where you need most. fly wire technology for maximum grip on the medical area. Double density foam midsole/sole for lightweight comfort. Hexagonal flex grooves are cut into the outsole for natural ride. In like-new condition. Open to reasonable offers.