AAS I - AIR ADJUSTABLE SYSTEM I is a back system developed particularly for the most demanding travellers, whose backpacks are constantly carrying heavy load. AAS I System ensures perfect load distribution and outstanding stability even when your backpack is filled at full capacity. The flexibility of the back panel respects and copies body movements and ensures excellent back ventilation. The backpacks with AAS I Back System are suitable for demanding expeditions, treks and similar trips with long-term heavy load carrying.

BullTECH is a strong polyester fabric with a distinctive grid-pattern structure. The interwoven reinforced fibre provides particularly high resistance to tearing while the polyurethane coating ensures water and abrasion resistance.