The Nike Flex Trainer 9 is designed specifically for low-impact station workouts and circuit training. Upper: Features a lightweight, breathable mesh. Support: Includes a synthetic upper with an external heel strap that integrates with the laces for customizable containment. Outsole: Utilizes an auxetic tri-star pattern that expands to disperse pressure with every step. Cushioning: The foam midsole is durable enough to also serve as the outsole, which significantly reduces the overall weight of the shoe. Durability: Strategically placed rubber in high-wear areas provides added traction and longevity Lightweight knit training sneakers by Nike. Maroon upper with white swoosh accent. Lace-up closure for secure fit. Sporty, versatile style for everyday wear.