I acquired this very practical bag a few weeks ago and found it particularly useful when I was flying with my toddler in tow. Carrying his bag, pushchair, my bag and him and getting all that stuff (and him!) through security meant it was so much easier to just slide my MacBook out and back into the bag than getting it out of a sleeve inside a Bayswater - which is what I had done previously.
I really don't get why Mulberry ever stopped producing these - maybe it was just a limited licencing deal with Apple or whatever but I really wish you could get any Bayswater as a laptop bag...
Mulberry Bayswater for MacBook in Black Drummed Patent Leather
Width 36cm, Height 28cm, Depth 12cm
1 padded laptop compartment with tab closure, 1 removable pull-top bag.
1 zipped compartment, 2 slip pockets, 1 press stud compartment for pendrives.
Anyway, let's see what fits in...