Nylon liningZipper closureMaterial:Mainly made with high-grade durable canvas, classical and refining design.,elegant and fashionable.Approx Dimensions:Backpack:12.2" L x 5.5" D x 17.7" H Shoulder Bag:7.9" L x 2" D x 9.4" H Pencil Case:7.1" L x 0.4" D x 3.9" HBackpack structure:1*separate laptop slot,3*inside phone/wallet pockets,1* inside zipper pocket ,2*outer sides pockets,1* outer front zipper pocket.The rucksack is veryPerfect for carrying your water bottle, umbrella, cell phone, keys, laptop, magazine and so on when you are cycling running hiking climbing or any other outdoor sports sturdy and spacious, it has lots of room which is perfect for carrying a tablet/laptop and snacksGreat for casual day use and for students going to school & college. Fashionable and super cool. Perfect gift for you and your friend.