Hi, I bought and tested a backpack fitting for our concertinas. I use it when I walk around or I drive my motorbike. The product is this: http://www.koolertron.com/koolertron-canvas-dslr-slr-camera-shoulder-bag-backpack-rucksack-bag-with-waterproof-cover-and-inner-padding-for-sony-canon-nikon-olympus-inner-size-45cm-x-30cm-x-20cm-yellow-p-146.html I fit an old camera box to protect my Wheatstone EC. The result is very good. Another positive feature is the bottom space, separated from "conce