Osprey backpacks are known for their great carrying comfort and durability - this also applies to the Daylite backpack, made primarily for everyday use. - Comfortable, airy AirScape back panel - Main material: 300 denier polyester made from recycled fiber, bluesign approved, GRS certified - Inside pocket for documents - Flexible side pockets - Compression straps on the sides - Chest strap with emergency whistle - Key clip - Detachable hip strap - Compatible with hydration bladders The fabric is DWR treated to repel water without the use of PFCs.