Nike Celso Motion Slide - Men'sAfter a workout, your feet will thank you when you slip them into the Nike Celso Motion Slide. Neoprene-like strap provides seamless comfort and a dynamic fit. Dual-durometer midsole/outsole features a soft, pliable Nike Solarsoft foam midsole with built-in grooves that adds optimal airflow. Nike Solarsoft foam in a harder durometer offers durable traction and stability. Deep flex grooves mimic the bottoms of Nike Free shoes.