Lightweight and functional Fast Hiking Pack with excellent comfort and stability. The Fløyen W 4 has been specially designed in accordance with the female anatomy, and features the Bergans FlowPanel, which provides optimal ventilation and wicking properties in the back. The RS3is our patented stabilization system and means that the backpack sits perfectly on the back, even during intense activity and movement. The compression system is easy to use and can be tightened and loosened while you are carrying the backpack. The backpack has internal and external pockets and storage solutions to cater for all needs. The Fløyen W 4 is supplied with a Hydrapak 1.5L BPA-free hydration system.