It's been enormously what in the bag fits everything, in my case: alpha 58 with wide angle, telephoto, Acer Aspire Switch 10 (just make ;-)) plus the alpha58-book by FS on top of the first protective cover, then close ... but then the bag is also fully ;-)) Oh, and of course the cable along with charging station, etc. not forgetting filter! The zippers make this a very confident impression. The comfort is also very good. For weather resistance I can not say yet detailed.