Unfortunately, there is not the part (and no other) in a slim intermediate size between S and M. For my slim system camera lenses as the Olympus M.Zuiko 12-50 or 14-150, there are therefore currently no good protective pouch because size S to is short and size M has a far too large diameter. Since the lens fluttered in unnecessarily large bag.
Long Glaber short: for conventional lenses probably ideal, suboptimal for Micro Four Thirds.