No matter what season it is, when traveling outdoors, there will always be times when God is not happy.  Chill you from head to toe.  At this time, if there is a waterproof outdoor backpack, it is more to protect the documents, money, and communication tools with you, and the clothes that need to be replaced are also prevented from being drenched.  I believe this point, as someone who loves outdoor sports, is very clear, even if you don't need a waterproof bag, you should prepare a small waterproof bag to store money, mobile phones, documents, etc.  Speaking of which, you must doubt that the waterproof bag really has such a good waterproof function, can it protect the contents of the bag from getting wet?

At present, the waterproof bags on the market are made of TPU waterproof fabrics.  TPU is the abbreviation of Thermoplastic Urethane, the Chinese name is thermoplastic polyurethane elastomer, TPU is made of diphenylmethane diisocyanate or toluene diisocyanate, etc., diisocyanate molecules, macromolecular polyols, low molecular polyols, and polymerized together.  Polymer Materials.  Its molecular structure is a rigid block obtained by the reaction of diphenylmethane diisocyanate or toluene diisocyanate, and a chain extender, as well as diphenylmethane diisocyanate or toluene diisocyanate, etc.  Diisocyanate molecules and macromolecular polyols are alternately formed by the flexible segments obtained by the reaction.

 TPU has excellent properties of high tension, high tensile force, toughness and aging resistance, and is a mature environmental protection material.  At present, TPU has been widely used in medical and health, electronic appliances, industry and sports, etc. It has the characteristics of high strength, good toughness, wear resistance, cold resistance, oil resistance, water resistance, aging resistance, and weather resistance that other plastic materials cannot match.  .  At the same time, it has many excellent functions such as high waterproof and moisture permeability, windproof, coldproof, antibacterial, mildewproof, warm, anti-ultraviolet and energy release.

 Because the general backpack fabric must have poor waterproof performance, even if a glass of water is sprinkled on it, it will seep in.  Therefore, I suggest that you try to choose a professional waterproof backpack manufacturer when you are outdoors! For example, love freedom luggage manufacturers! With the development of popularity and fashion, the role of luggage in daily life is constantly improving.  For many people, backpacks are a must-have item for travel. Whether it is outings or shopping, backpacks are often indispensable.  If there is a need for outdoor backpack waterproof customization, please feel free to contact us, we will provide you with the most professional waterproof bag customization service!