No need to travel under an assumed name when you're touring with the Black Diamond Alias AvaLung Pack; just be yourself. You can be confident that this lightweight, bomber day pack will cover your back for any contingency you plan for, and the AvaLung breathing system will hopefully see you through some of the unplanned ones, if worse comes to worst. It includes Black Diamond's ergoACTIV suspension system and built-in improved AvaLung.