BCAs Float 32 Avalanche Airbag 2.0 is 150 liters and not only does it create buoyancy and decrease your burial depth but also protects your head and neck from trauma in an avalanche. BCAs next-generation Float 2.0 cylinder is nearly 30% smaller and 15% lighter than their Float 1.0 engine. All the Float 2.0 system elements sit entirely separate behind a zippered covering, freeing up valuable space in the main compartment for gear, first-aid kit, and supplies. Please note: This is the pack only. The Float 2.0 Cylinder is sold separately. Find it here