This comfortable day pack features the ultra-light Aircomfort back system with maximum ventilation and offers an excellent comfort-to-weight ratio. It has a spacious main compartment and dedicated cell phone pocket, stretch side pockets, lid compartments and gear loops to strap poles and a range of gear to the outside of the pack. Prepped to accommodate a mesh helmet holder and hydration system (up to 3 L) and comes with a detachable rain cover.