6pm.com is proud to offer the Nike - Air Diamond Trainer (Pro Blue/White/Silver) - Footwear: The Air Diamond Trainer is a classic baseball trainer designed for the needs of today's athletes. ; Lightweight synthetic leather upper with removable tongue flap. ; Full-length Phylon midsole with heel Air-Sole unit. ; Rubber outsole combines a nubby bottom with cross training traction to meet the on-field needs of MLB players. ; Weight: 12.1 oz ; Product measurements were taken using size Men's 7, Women's 8.5. Please note that measurements may vary by size.