Features ‧ There is a zipper bag at the back of the top to store personal items, which can be adjusted ‧ The top ladder buckle can be tied to sleeping bags, floor mats, etc. ‧ The main bag is divided into upper and lower layers, separated by ropes, and items are placed in categories ‧ Side pockets, accordion zipper pockets for increased capacity ‧ Shrink straps to compress the main bag ‧ Ax buckle, can be used to tie hiking poles, ice chisels and other objects ‧ Bottom zipper bag with rain cover inside ‧ Bottom webbing can be used to tie tents and other items ‧ Independent front pocket for storing easily accessible items, such as maps, etc. ‧ Curved belt, naturally curved, fits the human pelvis, effectively relieving weight ‧ Elastic mesh pocket on the side, can hold water bottles, umbrellas and other items ‧ The height of the back panel can be adjusted according to personal needs ‧ Sliding chest and distress whistle buckles