Backpacks Type: SoftbackMaterial: PolyesterCapacity: 45L/100L45L Packing size: 24x20cm100L Packing size: 28x21cm45L open size: 43x26x36cm100L open size: 78x39x34cm45L Weight: Gary 250g/Dark Gray 380g100L Weight: Gary 360g/Dark Gray 580g