Converts any hardcase into a backpack / Compatible with Pelican / Peli / SKB / Nanuk / Seahorse / HPRC / Max / B+W / Explorer / Vanguard / Rimowa / Away / Zarges | 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 storage compartment | Modular assembly detachable shoulder straps, padded back and waist strap / Includes the standard RucPac hardcase straps / Dual weight bearing webbing straps secure to the top handle of the hardcase and additional Velcro on the back, offer reliable, non-invasive fitment