NIKE ULTIMATUM MAX AIR COMPACT BKPK (MENS) NIKE Male Ultimatum 24L Backpack BookBag Black BA4321-010 Black Material:	Nylon/Polyester 100% Authentic guaranteed. - New with tags. Dimension: (W)11" X (H) 17.3" X (D) 7" = (W) 28 cm X (H) 44 cm X (D) 18 cm (All measurement from the middle of the bag.)