1. Whether the short distance travel backpack has a double-layer bottom cloth design, which can greatly prolong the service life of the backpack.
2. Whether there are towing rings and ice axe rings. Whether the backpack has elastic capacity design when it needs to travel and walk for many days.
3. Whether there is a design of compression side belt. When the equipment is reduced, it can tighten the backpack and reduce the capacity of the backpack, so as to prevent the equipment in the backpack from shifting and shaking during action and affect the travel balance.
4. Whether there is a design convenient for carrying crampons, sledges, snowshoes and climbing sticks.
5. Whether there is a removable side bag, which can increase the capacity elasticity of the backpack.
6. Whether the backpack has a chest strap design, which can prevent the backpack from moving in difficult and harsh terrain.
7. If the backpack is used for technical climbing or dense forest, the backpack with smooth shape shall be selected to avoid being entangled by branches or rocks.
8. The material of backpack fabric shall be firm and wear-resistant, which can meet the needs of field activities.
9. Will the zipper of the backpack be directly stressed? If it is directly stressed, what are its stress limitations? If the zipper fails, can the backpack still be used?
