-High quality polyester upper, tough, durable and not easy to break-Top and outside handle-Main compartments with zip fastening-Front zipper pockets -Back zipper pocket-Two side pockets-Back zipper pocket can be thickened by 6cm to expand the body capacity-Exterior USB charging plug-Large capacity storage-Inner padded laptop sleeve-Interior multi layer space-Adjustable shoulder straps-High density polyester lining-The back strap can be inserted into the pull rod of the suitcase-Soft foaming on back side, ventilation, decompression and comfortDimensions: L31cm x H47cm x T18cmWeight: 0.89kgDifferent people with different measurement, so it may exist 1-3cm measurement errors. Hope you will not mind it. Twenty Eight Shoes VANSA Expandable Travel Backpacks VBM-Bp006641