1.Material of the backpack
The main bag fabric and strap of the backpack are represented by "XXX" D, "XXX" refers to the density of the nylon thread of the fabric, Of course, the density of the backpack is good, the general main bag is in 400 D- 1000 D (mainly to do the bottom of the bag).
But there's also DuPont's rip-proof material: Cordula, The surface of the fabric is
distributed in a grid shape, which can effectively prevent the wound after the fabric is scratched from further widening At present, the BIG BACK, VAUDE, OZRKA and other backpacks are made of this fabric, and the logo "Cordula" is specially hung on the body of the bag. If Corula is used for the body, then the requirement for "XXX" D can be lower. 400D--700D is enough. So relatively speaking, BIG PACK, VAUDE backpack are around 500D-750D... Backpacks generally do not need to be washed, which DuPont took into account when developing backpack materials .
If it gets dirty, wipe it with a damp cloth or use a dust cleaner...
2.Waterproofness
While the average bag boasts "1000" mm of water resistance, that's the ideal number for static,
In reality, the water is slowly seeping into the backpack, so be sure to prepare a rain cover...
Buy a rain cover larger than the backpack, because in most cases there is an external tent or waterproof mat...
When going out, it is best to put the rain cover on the backpack, not necessarily until it rains, but also to avoid the backpack hanging injury or dirty...
In fact, the air conditioning cover can also replace the waterproof cover, and it is much cheaper
In addition, the backpacks now sold, in fact, have their own rain cover, since the business will separate it out to sell more money only...
Post time: Sep-11-2023