Vorn Lynx Hunting Backpack - 12/20 Liters 12 liters capacity excluding the weapon compartment, and external mesh pockets. Expandable to 20 liters by opening the zippers along the main compartment of the backpack Internal frame in aluminium 6061 T6, which efficiently transfers the load from the main compartment to the carrying system Well padded hip belt with MOLLE. Mesh pockets on the front, inside the main compartment and inside the top of the backpack Hydration bladder compatible