A single shoulder bag (handbag) purchase a single shoulder bag because all the stress is on one strap, so the important thing to buy this type of backpack is to pay attention to the stability of the strap and the joints, preferably the metal interface, if it is Don’t think about plastics.
Two shoulder bags to buy. Many friends, especially students and friends like the author, must have the experience of carrying their books home. Due to the long distance, carrying a shoulder bag for a long time will cause shoulder pain. If you travel frequently, you may still Will leave some sequelae, after all, not every friend uses ultra-thin notebooks. At this time, we can consider buying a laptop bag with shoulders. Generally, there are relatively few laptop backpacks available in the market, so it is recommended that you go to the agent of the book to order or go directly to the Internet to buy (preferably the manufacturer’s website instead of other online shops).
Third, the purchase of the notebook inner bag The notebook inner bag is to make a sponge protective layer for the notebook, the effect is relatively small, and it is only suitable for short-distance movement.