The Nike Metcon Flyknit 3 in BlackBlack provides a stable fit with functional details for a versatile workout including everything from weightlifting to sprints. The Nike Metcon Flyknit 3 Men39s Training Shoe delivers the flexible breathability of a Flyknit upper with an updated collar for comfort. The dropin midsole works in tandem with firm rubber in the heel to provide durability and stability for highintensity intervals. Flyknit upper delivers durable, yet lightweight flexibility. Stretchwoven bootie provides a socklike fit. Firm rubber in the heel provides durability and stability. Synthetic overlays in highwear areas such as the toe and lateral side enhance durability. Moulded flex grooves in the forefoot allow your foot to move naturally. Flywire technology integrates into the laces at the midfoot for a dynamic fit that helps keep your foot in place without restricting natural movement. Firm rubber in the heel provides durability and stability for highintensity intervals.