This bag looked a little big when I first got it but after using it for a week I am glad that I went with the bigger size. I bike to work and I can fit an extra change of clothes, shoes, my purse, lunch bag, make-up bag etc. into my Richshaw with no problem and still have room to spare.
The only negative so far is I wish the strap adjusted to a little tighter setting.
Overall, I am super happy with my purchase!
I really like my zero messenger! It is quite large, however. I bought the Messenger Large for the sole fact that I needed it to fit my 15" Macbook Pro. There is a lot of extra space and fabric if I don't fill it to capacity, which doesn't happen often.
My bag is really lovely, I did the aubergine tweed with barn red interior and piping. I only wish the aubergine was a little more purple and a little less brown under most indoor lighting. The bag is very large, there is enough room for my laptop, multiple school books and whatever other miscellaneous stuff I have with me at school. The bag is still a little heavy when empty but it is on par with other bags of the same style. Overall the bag is perfect for school and so far has kept my stuff dry in the rain.