36.5 hiking backpack by Som Choi from korea

36.5 hiking backpack alone is able to act as the jumper during the high mountain range. It not only provides the protection of the hikers' temperatures, but it also make the trip lighter. The usual technique in hiking backpacks which are the available extra spaces and pockets are also used for 36.5 hiking backpack but it's simply able to act as jumper by closing and opening the zippers.