Nike Metcon 4 Size 9 Training Shoes in "Particle Beige/Celestial Teal" Only worn a few times- very good shape! Particle Beige/Celestial Teal Key features of the Nike Metcon line are: Stability: A flat, wide heel provides a solid base for lifting. Durability: Rubber outsole and reinforced areas add durability for high-intensity workouts. Traction: Firm rubber outsole delivers traction on various surfaces. Breathability: Mesh material helps keep feet cool. Cushioning: Dual-density foam provides responsive cushioning. The Nike Metcon is designed for cross-training activities, including CrossFit, weightlifting, and HIIT