Heavy equipment should be placed on the top and against the back, such as stoves, cooking utensils, heavy food, rain gear, water bottles, low center of gravity or away from the back, which can cause the body to bend and walk. Tents should be tied to the top of the backpack with umbrella straps, fuel oil and water should be placed separately to avoid contaminating food and clothing, and secondary heavy items should be placed in the center and lower side straps of the backpack, For example, spare clothing (which must be sealed with plastic bags and labeled with different colors for easy identification), personal equipment, headlights, maps, compass, cameras, and light items tied below, such as sleeping bags (which must be sealed with waterproof bags), camping posts can be placed in side pockets, while sleeping mats or backpacks must be equipped with long straps to tie some items, such as tripods, camping posts, or placed in side pockets.

Generally, heavy items should be placed on the top, so that the center of gravity of the backpack is higher. This way, the person carrying the backpack can straighten their waist during the journey, and some of the center of gravity should be lowered to allow their body to bend and bounce through trees or climb on bare rock walls. During climbing (rock climbing backpacks), the center of gravity of the backpack should be close to the pelvic position, which is the center point of body rotation, to prevent the weight of the backpack from shifting to their shoulders during the hiking process, The center of gravity of the back packaging can be higher and tightly attached to the back.