Men's Nike Air Monarch IV Training Shoe TOTAL SUPPORT FOR TRAINING. Men's Nike Air Monarch IV Shoe sets you up for comfortable training with durable leather on top for support. A lightweight foam midsole with a full-length encapsulated Air-Sole unit cushions every stride. Leather upper features overlays for support and perforations for airflow. Full-length encapsulated Air-Sole unit cushions for comfort and support. Solid rubber outsole is durable and provides traction over varied surfaces.