As you can see below, the Brompton fits snuggly inside the Dimpa Storage Case. (Vincita, adopt these dimensions to your B-132 Bag, please!!! 65cm x 65cm x 22cm) I like it also that the zipper goes all the way to the side of the bag making it easier for one to fit the bike.
So for now, whether for airplane, train or bus travel, the Vincita B-132 Bag is still my folding bike storage/travel bag of choice. Yes, it may be bulky, but at least its sturdy and has sufficient padding to protect my bike.