Zappos.com is proud to offer the Nike Kids - Endurance Trainer (Infant/Toddler) (City Grey/High Voltage/Blue Dusk/Metallic Silver) - Footwear: Your kiddo is in it for the long haul with the Nike® Endurance Trainer! ; Supportive leather upper with mesh underlays for breathability. ; Hook-and-loop closure with elastic laces for easy on and off. ; Padded tongue and collar for added comfort. ; Full-length Phylon midsole for lightweight cushion. ; Nike Free-inspired outsole features deep flex grooves for improved mobility. ; Non-marking rubber outsole for maximum traction. ; Weight: 4 oz ; Product measurements were taken using size 8.5 Toddler. Please note that measurements may vary by size.