Model : Quechua Forclaz 70+10 Symbium Access Rucksack
Color : Grey/Blue,Black
TECHNICAL INFORMATION
- The “Air Cooling” certification. - “Air Cooling”-certified packs are laboratory-tested in order to assess the quality of their ventilation systems: a heated dummy which can produce artificial sweat provides a scientific and objective measurement of the pack’s ability to reduce perspiration. This certification is only given to packs that perform significantly better than a “basic” model in the range (which does not feature any particular ventilation system). We also match them up against rival products on the market.
- How is the capacity of a pack measured? - The capacity of every backpack is measured using a standard method: we fill the main compartment as well as every pocket with small balls. All the balls used are then emptied into a graduated container to measure the pack’s capacity in litres.
- How to pack a backpack. - Put sleeping gear at the bottom. Position heavy items (tent, stove, food...) close to the back. Clothes are placed around these. The mattress goes under the hood and a tent can be fixed underneath the backpack if there is no more space inside. Make sure your wind jacket and fleece are easily accessible. Use the pockets to store small items (sun lotion, map, sunglasses,...) that will be needed during the day. Usually, there is a compartment along the back for a hydration pack.
- How to fit a backpack. - LOOSEN all the straps (shoulder straps, hip belt, tensioners). PUT THE BACKPACK ON. For backpacks with a capacity of 50L or more, PLACE THE HIP BELT CORRECTLY (over the hip bones) and FASTEN IT. For smaller backpacks, the hip belt should be placed around the waist. TIGHTEN THE SHOULDER STRAPS. Finally, ADJUST THE TENSIONERS to your personal requirements.
- How to adjust the backpack’s back length - Set the back length system as best you can and then fit the backpack (see the “How to fit a backpack” section). With the hip belt on the hips, the shoulder straps should cover the front area of your shoulders, and the tensioners (which are also sometimes adjustable in height) should be at a 45° angle (and not in a vertical or horizontal position). If you feel the back is too short or too long, restart the process until you feel comfortable.
- The Symbium system. - The Symbium pivoting belt and the shoulder strap elastics allow the shoulders and hips lots of freedom of movement. This reduces the stress at the shoulder straps and belt thereby making it more comfortable for long hikes.
- Backpack technical tests. - Backpack components are approved in laboratory tests: fabrics; buckles; straps; padding; zips... For example, fabrics are tested for resistance to abrasion, tearing, UV rays, repeated washing, waterproof properties, etc… A final test on the finished product simulates the kind of treatment to which it will be subjected over several years, to assess the strength of the assembly. A fully loaded backpack is put on a dummy to simulate the movements of a fast-walking hiker over thousands of cycles.
- The Symbium 4 system. - The Symbium 4 system reduces the forces exerted on your back by almost 8% when compared to a traditional backpack. The Symbium 4 elastic allows the pack the "bounce" thereby aiding the person to propel themself forwards. The Symbium 4 elastic absorbs the shockwave of the bag on the back. This results in a 720 g reduction for each step for a 20kg bag, that is, 31 metric tons less on the back for a 6-hour hike and a reduction in the effort required by the walker.
