100% Polyester (Oxford)Polyvinylchloride coatedStraps: 100% PolypropyleneTotal volume: 36 liter (total)- main- & front pocket: 26 liter- hip bag: 6 liter- side pockets: 4 liter (together)- removable hipbag with several zipper pockets- hipbag also usable as shoulder bag- rucksack: big main pocket..