Cotopaxi Allpa 18L Daypack Aster. This traditional panel-loader pack features a laptop and tablet sleeve and mesh exterior water bottle pockets for the daily. And when its time to switch from work to travel the highly durable fabric can handle getting roughed up on trains and subways and the pass-through luggage strap on the back lets this pack sit upright on a roller. Specifications for Cotopaxi Allpa 18L Daypack: Manufacturer: Cotopaxi Gender: Unisex Age Group: Adults Size: One Size Pack Volume: 18 liters Capacity: 18 liters 18 liters Fabric/Material: 100percent Nylon Width: 8 in Height: 17 in Lining Material: 100percent Polyester Features of Cotopaxi Allpa 18L Daypack Zippered main compartment 15 in padded laptop sleeve 13 in padded tablet sleeve Stretch water bottle pocket (up to 32oz) Internal organization Fleece lined pocket 2 exterior accessory pockets Luggage pass-through Women-focused fit in harness and back panel Package Contents: Cotopaxi Allpa 18L Daypack Cotopaxi A18-S26-AST: Allpa 18L Daypack Aster