RucPac Pro Backpack Conversion for Pelican CasesListing features: Converts most Pelican hardcases into a backpack Allows immediate access into the hardcase whilst still attached Generously sized fully padded back, shoulder area and weight bearing waist strap offer comfort and durability Allows wheeling of wheeled hardcases whilst still attached Height adjustable shoulder straps suit different sized users Quickly detachable and can be stored inside the hardcase Dual accessory D rings and zipped