I have been using the Mammut Pro Protection air bag pack for patrol work for about 5 seasons. I work at a Class A avalanche mountain in Utah and these packs are issued to all pro patrollers since we do a lot of avy mitigation work. Other pro patrols use the same pack. It has been very durable, adjustable and comfortable. I also have a Dakine non-airbag pack that is very good also.