NIKE ULTIMATUM Male Backpack Book Bag Black BA4901-001#4B41 NIKE ULTIMATUM Male Backpack Book Bag Black BA4901-001 #4B41 Main color : Black. Material:	 Polyester / Ethylene vinyl acetate Dimension: (W)13.7" X (H) 20.4 X (D) 5.9" = (W) 35cm X (H) 52 cm X (D) 15 cm