
Originally Posted by
Darcy
Everyone -- even those 5'4" and under -- felt the Standard
Aeronaut was just as comfortable as the Breve, so we've decided not to make the Breve again. The few Breves in Black are the last ones that will be available. The Aeronaut with Standard straps will continue to be available in Black, Steel, and Crimson.
I have both the standard Aeronaut and the Aeronaut Breve, and when I first read this comment I went back to compare them again used in backpack mode. Darcy, it's true that the standard Aeronaut is reasonably comfortable, even for someone who is 5'4", but the straps on the Breve are more comfortable for me. It's likely more a question of frame size than height, and it's not a big issue for only occasional use backpack mode, but I
can tell the difference.
Here's some of the discussion excerpted from the original Aeronaut design thread from 3 years back:

Originally Posted by
moriond
I also want something that works well for smaller, female, builds. Large backpacks often seem designed for people who have broad, flat backs.

Originally Posted by
eristick
There are plenty of backpacks designed to distribute weight better for the narrower female back and shoulders, but they are all backpacker-style packs. This is more important to me if I were hiking -- it wouldn't be a major issue for me with this bag. Walking all day on uneven terrain is a whole different ballgame than walking a mile or two to the hotel from the train/bus station.

Originally Posted by
aakepley
I think this is more than distributing weight better for the female body as some bags are physically too big for smaller people to carry. A maximally sized carry-on (22" by 14" by 9") is going to be too wide and too long for my body. It would be nice to see a petite version of this bag that would be a inch or so narrower and a couple of inches shorter. This would even be convenient for larger people traveling abroad as some international airlines limit carry-on size to 19" by 13" by 9" (particularly for travel that's not to or from the US) and its hard to find a bag here in the U.S. that meets these requirements.
(Note: For me at least, comfort is king. After schlepping my bags all the way around the world through more airports than I care to remember, I want a bag I can carry around for long periods of time and not regret it the next day.)
Here are also some
early and
later comments from users with smaller frames who used the standard Aeronaut.
Finally, there are some reference links in
this recent post addressing possible size issues for a Brain Bag vs. Aeronaut used by someone 5'3". (You may want to also scroll up 2 messages to read the original post being addressed).
So, probably not a big difference, but I'm glad I have my Aeronaut Breve, too.
P.S. I also have the
Western Flyer and I find the strap design of the
Aeronaut more comfortable than the sling strap design used there. This is despite
my comments about the great design of the original Buzz and its sling strap. You can probably see why I find the Aeronaut's straps more comfortable than the Western Flyer's if you look at the comparison
Western Flyer vs. Aeronaut pictures at the One Bag, One World site. The last frame with the Aeronaut and its backpack straps compared to the Western Flyer with its sling strap shows that the back of the Aeronaut is more contoured. Incidentally, I agree with
this review of the Western Flyer that its virtues include the fact that its rectangular shape is better for underseat storage on airplanes than other bags, so I didn't choose that bag on the basis of the comfort of its sling strap, and probably won't use it very often. For a more extreme response to the sling strap issue, see the
next post in that Western Flyer review thread.