For longer day hikes that require more gear than a typical hike, we load up the Gregory Maya 30L Daypack to ensure everything we need is along for the adventure. BioSync suspension features a flexible hipbelt and shoulder harness that move with the natural movements of our body and are constructed with perforated, padded material for breathable all-day comfort. This 30L pack features plenty of internal storage while also offering an exceptional amount of external storage with six total pockets that offer quick access to water bottles, phones, and other essentials.