Overnights, supported thru-hikes, light and fast multi-day trips – the Arc'teryx Aerios 45 backpack is your pack. The carry is comfortable and the material minimizes weight but is gridded with a liquid crystal polymer ripstop for exceptional strength and durability. The main compartment holds larger gear and easy-access pockets on the hipbelt, harness, and sides of the pack secure small essentials. A daisy chain and bungee system add storage options, and the comfortable AeroForm back panel is exceptionally breathable.