Aenergy 18 from Mammut is an ultralight day trip backpack with ventilated and ergonomic suspension. In addition to a spacious main compartment with a roll top closure that provides up to 2L extra when needed, it also has a large outer pocket in mesh and attachments for soft water bottles in the shoulder straps.\n\nWide, ergonomical shoulder strapsReflective detailsEmergency whistleLightweight constructionTwo soft flask holdersMade with recycled fabrics Mammut Aenergy 18 Black | Buy Mammut Aenergy 18 Black here | Outnorth