What should women pay attention to when traveling with backpacks?

How to choose a suitable backpack and carry out reasonable filling, carrying and maintenance; Has been bothering most big three mountain friends like me; The following are some ideas and things sorted out with reference to previous experience. I dare not enjoy them alone. If there are any mistakes or corrections, please feel free to do so. Thanks in advance. 1. Considering that most people will choose to buy a built-in backpack at present, buying a built-in backpack is the main explanation. First of all, the structural design of the backpack must have the following basic items: * Whether the bottom of the backpack is double-layered can increase the durability of the backpack. * The expansion package at the top of the backpack must be able to expand upward again, and the expansion package must be sealed. * The tightening belt on the outside of the backpack must be able to tighten the volume of the backpack and prevent shaking. * The side pockets of the backpack should be easy to disassemble and assemble. * The backpack must have a traction ring and an ice axe ring to carry crampons, snowshoes … and other items. * Whether the durability of the backpack meets your needs. * The waterproof degree of the backpack. * If the zipper fails, whether it can continue to be used. Note: Waterproof sleeves must be used. Although the backpack is waterproof, rain will still seep from the suture, the top of the pocket or the zipper seam. After checking the appearance, put the backpack back in front of the mirror, and pay attention to the following matters: * After adjustment, the skeleton of the backpack must be 2 ~ 4 inches higher than the shoulder, and the upper bag should not exceed 5 or 6 inches, otherwise re-select. * When carrying, the center of the belt should be in the center of the ischium, the tail end of the waist pad should not be too close, and the part without pad should not be rubbed. Don't choose a belt that is too tight. * Adjust the fixing point of the shoulder strap. The curve of the shoulder strap should be close to the wearer's back, and the shoulder strap should be about 2 ~ 3 inches lower than the shoulder top. Hold the end of the shoulder strap with both hands, and the fist should be lower than the armpit. * head can't hit the backpack top cover, can't interfere with wearing a helmet. * The chest strap must be able to help the wearer cross difficult terrain. 2. Put generally heavy items on it, so that the center of gravity of the backpack is higher, so that the wearer's waist can be straight during walking. But the center of gravity of the middle mountain is lower, so that the body can bend between trees or walk on the climbing terrain with bare rock walls. When climbing a mountain (mountaineering backpack), the center of gravity of the backpack is close to the pelvic position, that is, the center point of body rotation, to prevent the weight of the backpack from moving to the shoulders. When hiking, backpacks are loaded. * Heavy equipment is placed on the top and back: such as stoves, cookers, heavy food, rain gear, water bottles, etc. If the center of gravity is too low or far away from the back, the body will bend and walk. The tent must be tied to the top of the backpack with an umbrella belt, and the fuel and water should be placed separately to avoid polluting food and clothes. * Secondary items are placed in the middle and lower part of the backpack. Light articles with ^fen^ are tied below: such as spare clothes (which must be sealed with plastic bags and marked with different colors for easy identification), personal appliances, headlights, maps, compasses, cameras, etc. Put it in the center of the backpack ... such as sleeping bags (which must be sealed with waterproof bags), and camping lights can be placed in side pockets, such as sleeping mats. Put it behind your backpack. * backpacks should be equipped with long straps. You can tie some items, such as tripods, camp posts or put them in side pockets. The suitable backpacks for men and women are different, because boys have longer upper bodies and girls have shorter upper bodies, but their legs are longer. Carefully choose the backpack that suits you. When carrying loads, boys' weight is higher, because boys' center of gravity is close to the chest, while girls' center of gravity is lower, close to the abdomen. Heavy items should be carried on your back as much as possible, so that the weight is higher than your waist. * When climbing a mountain (mountaineering backpack), the center of gravity of the backpack is close to the pelvic position, that is, the center of rotation of the body, to prevent the weight of the backpack from moving to the shoulders. When hiking, the center of gravity of the backpack can be higher, close to the back. * fuel and food should be placed separately. Note: Don't make the back of the stove or boiler group uncomfortable, and wipe the boiler group clean before putting it into the tent in rainy days. When placing items, put the heavy objects that are not afraid of bumping and used less below; First-aid drugs, knives, ropes and other instruments should be placed in the most convenient position to take out; The placed backpack should be able to be placed independently and stably. 3. When walking on your back, tighten the strap of your backpack, so that the crotch is under the greatest gravity, and the shoulder strap should be relaxed, so that the top of the shoulder strap is at an angle of 45-60 degrees. It's easy to walk like there's nothing. If there are many or all heavy objects, they can be placed evenly. Fasten the chest strap so that backpackers don't feel backward. Pull the adjustment belt between the shoulder strap and the backpack with both hands when marching. Lean forward slightly, so that the gravity when walking is actually in the waist and crotch, and there is no pressure on the back. In an emergency, the upper limbs can be flexible. When there are not many items in the backpack, tents, sleeping bags, moisture-proof mats, etc. Can be placed outside the backpack and fixed with external straps. There are also differences in different places outside the terrain, such as drilling in the jungle, and don't develop high. Carrying heavy bags on your shoulders is also skillful. Put your backpack at a certain height and put your shoulders into your shoulder straps. It is more convenient to lean forward and stand up with your legs. If there is no high place to put it, lift the backpack with both hands. Kneel on one knee (facing the strap). Then one hand controls the bag, and the other hand grabs the shoulder strap and rotates quickly, so that one arm can enter the shoulder strap, so that the other arm can enter it much easier. When passing through rapids and steep sections, you must protect the ropes. When passing through without protection, you should loosen the shoulder strap and open the belt and chest strap, so as to separate people and bags as soon as possible in case of danger. 4. During maintenance and camping, the backpack should be tightly closed to prevent weasels, mice and other small animals from stealing food. Be sure to cover your backpack with a backpack cover at night. Even on a sunny day, dew will still wet your backpack. During the snowy period, the backpack can be used as the door of the snow cave. If you walk or crawl in the Woods and bushes, it is more suitable to pack your backpack and lower your center of gravity. When camping, you can put your empty backpack under your feet, put it outside your sleeping bag, and isolate it from the cold ground to improve your sleep temperature. When you come back, you must clean your backpack. If it is too dirty, you can clean your backpack with neutral detergent and put it in the shade to dry. But avoid exposure for too long, because ultraviolet rays will hurt nylon cloth. Pay attention to basic maintenance during hiking. If the backpack is broken, it should be mended at once. Thick needle and thread should be used. The needle specially used to repair the chair cushion should be sewn firmly, and the nylon thread can be broken in case of fire. The backpack should be placed in a cool and dry environment to avoid mildew damage to the waterproof coating on the outer layer of the backpack cloth. Check the main support points, such as belts and shoulder straps, on weekdays, and check the stability of the backpack system to avoid deterioration or hardening of the gasket. Replace the zipper if necessary, and don't wait for something to slip out of your backpack before you remedy it. Travel preparation and precautions are "convenient" and "it doesn't matter if you don't have it". It is safer to choose sports shoes or walking shoes that you usually wear. However, if you plan to go to a formal place, you need to prepare corresponding shoes. The choice of small travel bags and backpacks depends on the actions of the place of travel and the items carried. Backpack allows hands to move freely, which is easier to move than a hard suitcase or a big shoulder bag, but its difficulty is that it is not easy to take out the contents. Therefore, those things or small items that are often used can be placed in side pockets or ceilings. The precautions when backpacking are to put heavy objects on it. In any case, it's best to travel in Mars as simply as possible. Even if something is missing, you can organize it on the spot. Please remember that "convenient" and "it doesn't matter if you don't have it" travel must have cash (foreign currency) and a small amount of cash (RMB). Don't forget the transportation fee from the airport and the station to your home when you come back. Air tickets and boat tickets, carefully confirm the departure date, time and route. It's convenient to bring a credit card. Be sure to bring it when renting a car. 1~2 shirts, t-shirts, etc. Change underwear, socks and two sets of sweaters. Even in summer, sightseeing at night costs 1 piece.