Inflatable bag, avalanche backpack and method of deflating an inflatable bag

A system comprising an inflatable bag and an inflation device, wherein the inflation device is attached to the inflation bag, the inflation device comprising a first opening adapted to allow the intake of a gas, a second opening connected to the inflatable bag, and a control,

• wherein
• the inflation device comprises an actuable valve with an inlet opening and an outlet opening, wherein the actuable valve is arranged on the inflation device or configured as part of the inflation device, and is controlled by the control to open and close the actuable valve, further wherein the actuable valve comprises a mechanism that maintains the actuable valve closed unless it is opened by the control, wherein the actuable valve has a default state, in which the actuable valve is without actuation, said default state being closed, the inlet of the actuable valve being in fluid communication with the inflatable bag such that the actuable valve, when opened, creates a fluid communication channel between an interior volume of the inflatable bag and the outlet of the actuable valve to allow passive deflation of the inflatable bag, wherein a one-way valve is arranged between the first opening and the second opening to only allow flow of gas in a direction of the first opening to the second opening and into the inflatable bag to allow inflation, wherein the inlet of the actuable valve is connected to an air path of the inflation device upstream of the one-way valve.