How to choose a backpack for a campaign?First of all, it is necessary to decide on the volume of future backpack. Here two mistakes - too small and too big backpack are possible. The big backpack provokes to stuff in it more. And if things everything is it will appear a little, then they will be laid not densely and the backpack will dangle.
In technically simple campaigns lasting less than a month there are usually enough 70 - 90 liters. Women usually bear less than 60 - 70 liters. But anyway, it is better to have a small stock on volume, than every time half an hour to stamp a backpack or to cling outside everything that is possible. If you decided to buy
a backpack, then you should know everything about forwarding, tracking, assault backpacks and cycle backpacks.
the Example of use of a forwarding backpack can be a zabroska of base camp of climbers or cave explorers, a water hike on folding vessels, and also a pedestrian or mountain autonomous campaign of big duration. Forwarding backpacks have to have large volume and allow to transfer big weight. Best of all the easel backpack or a backpack with a powerful internal framework meets these requirements.
For the majority of campaigns is enough backpack from 50 to 80 liters. These are so-called tracking backpacks. Such backpacks have the broadest application, they are intended for not really long campaigns when the weight and volume of food and equipment are not too big. It can be pedestrian, mountain and ski trips, and also one-day campaigns. Usually tracking backpacks have an internal framework from metal or plastic plates.
In difficult climbing ascensions apply tactics of statement basic and intermediate camps. Having put camp, climbers go further with light baggage. In this case it is irrational to drag a huge thin forwarding backpack. Here assault backpacks also are intended for storm of tops and passing of the most difficult sites of a route where there is no need, and an opportunity to transfer all stock of equipment and products. They are structurally similar with tracking, but have smaller (30 - 50 l) volume and often have no internal framework. Straps and a belt can be more rigid and without ventilation - all the same the backpack is put on a sponge. The main thing, such backpack has to weigh and be a little rather strong that it could be lifted on a rope. External fastenings are also necessary for rocky and ice equipment.
Backpacks for other types of active work of the sizes are similar to assault backpacks. But have also the features. Alpine skiing, skiturovsky and bordersky backpacks according to appointment have different types of fastenings for skis and a snowboard and avalanche equipment on outer side of a backpack. Often have a framework in the form of the strong plate protecting a backbone from injuries at unsuccessful falling.
Exist two types of cycle backpacks. The first are similar to usual backpacks of small volume (10 - 40 l). They surely have the suspended system providing good ventilation of a back. They have a large number of pockets for prophetic prime necessity. Keys, documents etc. Many models have office for drinking system and special elastic fastening or a pocket for a helmet. Such backpacks are suitable for one-day pokatushka.
Other type of cycle backpacks, so-called “ " trousers; are fixed on a bicycle luggage carrier. They allow to transport a lot of freight, necessary in a multi-day campaign. As a rule, they have three sections: one fastens to the left of a wheel, another - on the right, the third - from above. At all backpacks existence of stripes from fabric with a reflecting covering is obligatory. Correct marching “ " trousers; have to be equipped with the straps allowing on difficult sites to carry a backpack as usual on a back.