MODERN COMFORT. RETRO STYLE. A perennial favorite, the Girls' Nike Air Max 90 Leather (GS) Shoe delivers plush, flexible cushioning and durable support in an iconic design that's set the standard for over 25 years. Max Air unit in the heel offers lightweight impact cushioning. Full-grain leather upper with overlays delivers durable support. Soft, cushioned collar provides a contoured fit. Grade school size range: 3.5y-7y "