NIKE New Vapor Max Air Backpack Wolf Grey/Dark Grey/Metallic Silver polyester Nike MAX AIR Unisex Backpack Bookbag Grey-Neon Yellow (BA4729-017) Color:Grey-Neon Yellow Material:	 Polyester Dimension Approximately: (W) 12.2" X (H) 18.1" X (D) 6.2" = (W) 31 cm X (H) 46 cm X (D) 16 cm (All measure from the middle of the bag.) 100% Authentic guaranteed./New with tags.