Zappos.com is proud to offer the Nike Kids - SMS Roadrunner (Infant/Toddler) (White/Spark-Vibrant Blue) - Footwear: Take off with the Nike® SMS Roadrunner. ; Smooth textile and leather upper provides an adorable look. ; The Nike Sensory Motion System includes all of the needs of early walking: Lightweight, flexible, durable, traction, and comfort. ; Dual hook-and-loop closure provides a snug fit and easy on/off. ; Sockliner/midsole combo is crafted with a lightweight Phylon midsole. ; Multidirectional siped flex grooves add cushioning. ; Flexible rubber cupsole outsole has stitching for a durable construction. ; Weight: 3 oz ; Product measurements were taken using size 8.5 Toddler. Please note that measurements may vary by size.