These sacks have performed extremely well in test for their comfort and stability. The frame structure is very strong so that it does not distort and accurately transfers weight to the integrated hip belt. The hip belt has been upsized and upgraded for 2004. An outstanding range perfect for longer trips.

Detachable raincover Expansion side pockets Top lid pocket Internal security pocket Side compression straps Base compartment Base accessory straps Walking pole holder Capacity: 70+ liters

Viper Backpacks fabric FRONT PANEL: 6000D 72T high density PU coated polyester SIDE PANEL: 6000 72T high density PU coated ripstop polyester BASE: 12000 PU coated ballistic polyester BACK: Airflow™ 3-0 mesh RAIN COVER: 210D nylon CFS Fully Adjustable System Internal adjustment system keeps all straps out of the way Fully contoured frame 2 x 20mm A1 1 x 2mm A1 Double PP framesheet increases strength and stability Reinforced hipbelt is integrated with frame for maximum load transfer Airmesh body contact fabric