The Vango Flux 22 Rucksack is a pack born out of the love for adventure It combines technical rucksack features designed for the great outdoors including hydration pack compatibility & the Air Froce back system with the everyday convenience of features such as A4 folder compatibility keys security clip & multiple internal & external pockets Constructed in a 420 denier Cationic fabric this rucksack combines stunning looks with a fabric durability that is over three times stronger than Polyester making the Flux us a highly versatile every day rucksack