First of all, it is necessary to determine the amount of future backpack. There are two possible errors – too small and too large backpack. Large backpack provoking stuff in it more. And if things still will be enough, they will be packed tightly and do not pack will dangle. In the technically simple hikes lasting less than a month is usually enough of 70-90 liters.
Women tend to have less of 60-70 liters. But in any case, it is better to have a small stock by volume, than each time half-hour tramp or a backpack to hang out all you can. If you decide to buy a backpack, then you should know about the expedition, trekking, assault backpacks and veloryukzakah. An example of using Expedition backpack may be getting to the base camp of climbers or cave explorers, water hike in collapsible vessels, as well as hiking or mountain hike autonomous long duration. Expedition backpacks should have large volume and allows you to move a lot of weight. Best satisfies these requirements easel bag or backpack with a strong internal frame. For most hiking backpack enough volume from 50 to 80 liters.
This is so called Tracking backpacks. These backpacks are the most widely used, they are for not very long trips, when the weight and volume of food and equipment are not too large. It could be hiking, mountain and ski trips, and well as day trips. Tracking backpacks usually have an internal frame of metal or plastic plates. In the difficult rock climbing tactics used formulation of basic and intermediate camps. Putting the camp, the climbers go further light. In this case, dragging a huge half-empty backpack expedition irrationally. Here's to the summit and the passage of the most difficult sections of the route, where there is no need, and opportunity to transfer the entire stock of equipment and food, assault backpacks are designed.