The most indispensable thing for riding, camping, and outing is backpacking. It can carry a lot of things, free hands, keep the balance of the body, make the trip more secure and comfortable. However, it is not so easy to find suitable suits for backpacks of various sizes.
classification
Backpacks are generally divided into light and heavy bags. The lightweight backpack is suitable for hiking, camping and cycling. It has a light weight and a simple design. It is a good choice when the weight is no more than four or fifty pounds. Heavy-duty backpacks are suitable for high-altitude mountain climbing, long-distance traversing and other activities. The design is more concerned with the carrying capacity under load conditions, but it often has greater weight.
capacity
Outdoor backpacks are usually divided into different capacities, measured in liters (L), 15L, 30L, 45L, 60L, and 70L. However, it is not appropriate to see how large a package is to look at capacity and number, but also to see how large a suspension system is. The piggy back system is directly related to each person's torso length. In general, for small bags with a trunk length of less than 45 cm and a medium size bag with a trunk length of 45-52 cm, if the length of the trunk is more than 52 cm, a large bag should be picked. [Note: The trunk length refers to the distance between the seventh vertebra (the bone that is most prominent at the junction of the neck and the shoulder) and the vertebra that is parallel to the sacrum. 】
Some backpacks now use "elastic capacity" design because the consumables such as food and fuel on the road are reduced with the increase of activity time. In order not to affect the compactness and balance of the backpack, this design can make it possible to have several days after the activity. Backpacks are still able to play solid, but also make this backpack can be applied to different areas of activity. In general, small and medium sized backpacks do not need this design, and no one else designs them. If you want to change the size of the bag, you can adjust it by adding side pockets or adjusting the compression side.
The above backpack will have at least five adjustable elastic bands and have different functions. Such as belts, shoulder straps, chest straps, backpack compression belt, center of gravity adjustment belt. Each belt needs to be adjusted to the most appropriate level in different situations so that it can reduce the weight of the journey.
Material workmanship
Of course, the outdoor product is a sub-price, usually a good quality backpack is also expensive. There is also a lot of emphasis on materials, workmanship, and design when purchasing. Even fabrics, zippers, fasteners, webbing, belts, or shoulder straps are all different manufacturers and brands. In addition, a good package is mostly human in design, and this requires careful experience. A suitable backpack will make your journey more enjoyable.
In terms of backpacking fabrics, the selection needs to consider the degree of abrasion, the degree of waterproof technology, the severity of the fabric, the degree of protection against tearing, the degree of softness, and the degree of UV protection. (The tear-proof fabrics are mostly grid-shaped; general backpacks are not waterproof , Need to be equipped with rain cover; wear-resistant materials are mostly used in the bottom of the backpack, contact the ground and the most places where rocks, double bottom backpack can increase the durability of the backpack).
Currently used are "nylon" and "Cordura". Although canvas is more wear-resistant, it is rarely used because it is easily damped, wet and difficult to dry, and heavy. Nylon cloth is lighter in weight, will not absorb moisture, mold, fast drying, strength is good, the disadvantage is not wear and afraid of fire. Cordura cloth is a synthetic nylon cloth, but it performs better than nylon in terms of abrasion resistance and strength. It also does not absorb moisture, mold or snow, and is quick-drying, but slightly heavier than nylon.
Work depends on the strength of suture. Including the shoulder strap belt and the body of the suture, the cover and the body of the suture, the ring and the body of the suture, the suture between the fabric, the hanging tape and the body of the suture and so on. The key parts of the suture are generally multi-channel, multiple insurance.
Accessories quality
Accessories include waist buckles, all zippers, webbing and fasteners, cover and body fasteners, and external fasteners.
The more famous zippers are YKK and YBS. It is generally considered that YKK's zipper is a top grade. Outdoor backpack zippers are all metal, and the zippers used on heavy duty bags are generally No. 5 and No. 8. The relationship between backpacks and zippers is very large.
Webbings are generally Nylon and Poly. Nylon's webbing is of good quality and soft to the touch. Only the best bag can use it. Most of the bags use Poly's webbing. The carrying capacity of the webbing is very good, so it is generally used to connect the lower flyer of the strap, and it is used as a side pull belt, belt, etc. The webbing is generally used in conjunction with a buckle or a buckle.
The so-called “tap†is a kind of material in which one side of the hair is hooked. The two materials can be glued together, usually nylon. Used in the bag or other location. Utilizing the clevis can design some easily disassembled pendants.
The elastic, elastic rope and rope on the backpack are generally PP. Used in shrinkage or other locations in the bag.
Plastic plates are indispensable for mountaineering bags. They are generally used on the back to prevent messy things on the back of the bag and other parts. It is generally 1M and 3M. There are half foaming and no foaming. If it is a foamed PE board, some small holes can be seen on the top. The smaller the degree of foaming, the greater the hardness.
The aluminum bar is an indispensable part of the general inner rack type backpack. It has a certain degree of camber and is an integral part of the carrying system. Due to its camber, the weight of the backpack can be transferred to the buttocks.
For more information, please pay attention to China Backpacking Network
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