Port Authority Urban Backpack polyester zipper closure 600 denier ripstop polyester with contrasting poly for reinforcement Waist and chest straps for hiking, padded handle and back Interior padded laptop sleeve; Organizer pocket; MP3 player pocket with headphone exit port Laptop sleeve dimensions: 11.8"h x 11.6"w x 1.8"d Dimensions: 19"h x 17"w x 8.25"d; Approx. 2,665 cubic inches