In an attempt to help alleviate my neck and shoulder problems at least a little I hit on an idea. I bought a cheap pack of two soft, padded, wrap-around, velcro-sealing pad “things” designed to go on car seat belts. I fitted them to two of my small Manfrotto camera bags which have a strap width of approx.4 cms. It does help a bit to cushion the weight and, provide the bag strap isn’t wider than 4 cms then they should fit any bag . I chose these as the bags don’t have detachable straps that one could thread a pad through and thus I needed something that was a wrap-around fit.