1. Top "cover" a backpack I name the top valve.
2. A delay of a backpack that the backpack did not overturn back and did not hang about to the right - to the left on a back.
3. An adjustable point of fastening of straps of a backpack.
4. A S-shaped strap of a backpack - last squeak.
5. A chest belt, it is usually useless a hanging about element. But if you actively climb on a rock or go down on a ski with small (30-50л) a backpack that quite justified thing
6. Back inserts - special elements softening a back and ventilating space between your back and a backpack.
7. A zone belt - a basic element of a modern backpack allows transferring up to 70 % of weight of a backpack on a basin.
8. Special softening elements similar back and as a rule from the same material.
9. The bottom compartment of a backpack name - the bottom valve
10. A clasp for dump allows removing quickly a backpack at emergencies.

A design of a back - a body of a backpack: In an ideal loading should be allocated directly on a spine column, on the other hand the backpack is desirable for removing from a back far away - for ventilation. This problem manufacturers of backpacks solve by application of the longitudinal seams, special inserts from materials absorbing and deducing a moisture. (Look at picture)

At all it is not necessary to throw jerky a backpack from a floor on shoulders, standing with the straightened legs. At first follows, having taken a backpack for the handle to put it on what or an eminence and after that serially to push hands in shoulder belts. If the eminence is not present, put a backpack on a hip of the leg bent in a knee, and then to put on it.

Correctly to adjust a backpack, it should be already loaded, all belts should be weakened before adjustment. The sequence from which belts are tightened is important:

Step 1: To start it is necessary always from below, from a belt on hips. The middle of a belt should have approximately on a bone of hp joint.

Step 2: Now stretch shoulder belts. Belts should adjoin well to shoulders, however they should not be tightened too, otherwise hips too unload a nd loading almost completely moves on shoulders.

Step 3: Belts of adjustment of a position (above shoulder belts) should be fixed in area of clavicle. By an easy tightening the backpack adjoins to a back. It is necessary to watch that shoulder belts continued to adjoin to shoulders well! If the corner makes from 20 ° up to 30 ° to a horizontal plane the length of back a backpack is chosen correctly. If the corner is less 20 ° it is necessary to choose longer length of back and if the corner is more 30 ° - shorter length of back.

Step 4: Then the bottom belts of hip joint belts (give stability) are tightened.

The breast belt between shoulder belts unloads humeral joints (important at rock-climbing, driving on a ski, in general, there, where active movement by hands takes place).

The closer to a body heavy subjects are located, it is easier to put on a backpack and to counterbalance it during carrying. Heavy subjects it is necessary to have also above not heavy things at height of shoulders. Outside it is recommended to place only the most necessary, nevertheless lines of backpacks have practical adaptations for an attachment of various subjects, for example, for an attachment sideways frame elements of tent. The sleeping bag should be placed in branch in day. Packing bags facilitate the ordered loading and compactness in the main branch and lateral pockets.