The Bergans Y Mountainline Safeback SBX is a revolutionary avalanche rescue safety system designed specifically for the Y Mountainline 40 Daypacks. This innovative air supply system continuously provides buried victims with breathing air from the surrounding snowpack—a crucial advantage, as suffocation is the leading cause of death in avalanche burials. The system works intelligently: it draws in fresh air through an inlet in the backpack and directs it via tubes in the shoulder straps directly to the breathing area. At the same time, exhaled CO2 is removed, which significantly increases the chances of survival. Activated with a simple T-shaped handle on the shoulder strap, the Safeback SBX reliably delivers 90 minutes of breathing air – a crucial period of time that significantly extends the critical 15-minute rescue window. Powered by six lithium batteries (AA), which function optimally even at extreme temperatures down to -30 °C, the system offers user-friendly protection against suffocation. A life-saving innovation for anyone traveling in alpine terrain.