DESC: Material: 600D PolyesterVolume: 2400cu in (39.3L); 3600cu in (59L)Dimensions: [2400] 10.5 x 20 x 12in (27 x 51 x 30.5cm); [3600] 12 x 25 x 13.5 (30.5 x 63 x 34cm)Pockets: 1 Inner stash, 1 zip accessoryBackpack Straps: YesWeight: [2400] 1lb 8oz (700g); [3600] 1lb 12oz (800g)Recommended Use: Travel, business, gymManufacturer Warranty: Lifetime The Jansport Superbreak Duffelpack ranges in size from big to huge and easily converts into a backpack for convenient carrying. Choose the smaller version for an interstate trip, and pack up the larger bag for a Euro vacation.