Overall Dimensions: Approx 50cm x 40cm x 17cm (19.5" x 15.5" x 6.5") This is a really useful Black & Grey Backpack by RED X Hard wearing and Spacious yet Lightweight ideal for School, College, Work or Travelling. This Backpack is a good size and will easily accommodate A4 Folders and Ring binders; overall its just a well designed bag, good quality too!