Take your training to a more natural place wearing the comfortable Nike Flex 2020 RN minimal running shoes featuring a highly flexible outsole for a barefoot-like experience with great cushioning. Predecessor: Flex 2019 RN. Support Type: Neutral. Cushioning: Lightweight, flexible response. Surface: Road. Differential: 6 mm. Multi-direction stretch knit upper provides a snug fit. Synthetic overlays support the laces and provide additional structure. Lightly padded tongue and stretchy collar for a supportive wear. Soft fabric lining offers a great wear inside shoe. Removable foam insole. Dual-density foam midsole provides cushioning on every step. Heel strap stabilizes the back of the foot that allow natural movement. Deep flex grooves at the outsole helps deliver reliable traction and free toe and foot movement. Imported. Measurements: Weight: 7.3 oz Product measurements were taken using size 8.5, width D - Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.