I always like to encourage others to "take matters into their own hands" and make at least the simple type of bags and slipcovers for their own bikes. Nekohime's slipcover I made for her was the final version of the slipcover series I was designing & sewing for use on all brands of folding/separating bikes just last year. I found the Brompton one that I made for both my own Brompton and her own Brompton was very nice and quick to do. I do include a finished opening to grasp the frame directly-zippers can wear out & break in time and add more time to the sewing part. I think most saddles will poke through it-providing the saddle's width is narrow enough if that is what you want to use the opening for (I did placed one on your own slipcover also, Nekohime). I am in the process of doing some bags, then slipcovers for my oddly shaped-and much larger-Raleigh Twenty for my own use as I honestly don't see much commercial interest for Raleigh Twenty accessories. I will include some photos below as shown of my first bag's Test 1 Version: Twenty bagged then positioned vertically on the luggage cart ready to wheel about, another photo shows it peeking out from the bag. That is what I mean by treating your bag completely covered up as just another luggage-plus able to wheel about in the most congested aisles. The bag itself might not be flashy or trendy even at this stage of early development, but it still does it's job it was basically designed & intended for.

As for price, I don't want to elaborate it here as I don't want Nekohime know how much her gift was. Suffice to say, doing it yourself is a real money and sometimes even time saver (you don't have to wait around for it to be delivered or go to the dealer to buy one).

No, I bought the luggage cart as is and the bag is what it is designed to do-cover up.

Nice thought, but in most places as bikes become more valuable as transportation, no bike no matter the cost or appearance, is safe