Kid's Cross Training Shoes Nike Edge Trainer. For maximum motion control, count on the Nike Edge Trainer. Durable and handsome leather upper features plenty of ventilation. A lightweight Phylon midsole for all-around comfort. Ortholite cushioned insole for bacterial control and enhanced comfort. Soft textile lining and cushioned footbed for added comfort. A solid rubber non-marking traction outsole features a reinforced forefoot pivot point.