Because outdoor backpacks are used in special environments, high demands are placed on the materials and processes of the backpack.
First talk about materials, generally good package selection like 500D Cordura which is both strong and can prevent a little water. Be sure to choose the bottom of the super strength material. This is one of the most prone to wear, preferably with 1000D Cordura fabric. Want a large YKK zipper. Although these things are too big to add weight, they are still a little better. The carrying system must have good filling materials and be strong. It’s too soft, it’s terrible when you carry a lot of things. The filling material between the inner frame and your body can be slightly softer, preferably the kind of mesh that absorbs sweat. All the positions where the backpack is stressed are sewn three times with the stitching needle to make the position of the force strong and durable. The buckles of the backpack can be made into anti-freeze, anti-mite and 120 degrees Celsius deformation without damage. The outer material of the backpack is mainly 420D Oxford nylon, 1000D nylon, 600D or 1000Dpolyester (polyester), or 1000D CORDVRA. The 1000D material is high in density and very wear resistant, making it ideal for use in the field. CORDVRA is a well-known high-grade wear-resistant nylon roving fabric developed by DuPont. The material's wear resistance is much higher than that of ordinary nylon or polyester, and it is light in weight. More than 90% of the world's famous brands of backpacks use this prestigious nylon material. These materials can withstand water pressures of 0.5m to 2m, keeping objects inside the bag dry. Some materials also have a tear-proof function, and once punctured, the rip will not tear open and expand.
Craft, the inside of the bag is best to have a stretchable "Collm Collar". When you don't need to bring a lot of things, your bag looks small. For example, the 95-liter bag may look like a 70-liter. Removable backpack cover. When you set up the camp, you can put something else in the car or in the camp, pick up the backpack and put the essentials inside, so you have a small backpack. The general bag has a pocket with a sleeping bag. You can also install something if you don't need a sleeping bag. Some packages can be filled not only from the top, but also in the Front Pocket. If you need to take something from under the bag after loading the bag, you can pull the zipper from the front pocket to save it, and save one piece from the top. In addition, the pockets of the water bottle are also very useful. It's best to have the ability to bundle things. As for the ability to carry a hail tripod, according to individual needs, the average person does not use it. Drinking system Hydration System and the like depends on personal habits and hobbies.