OK - some pictures...

Jandd Rear Rack Pack I. This truck bag looks different that the picture on the web site. Basically the same - except that (maybe) the newer version of this bag now includes the elastic chord which is woven on the top of the pack. Great for lots of options while on the bike... It also has a zippered top - which gives you the option to store item(s) on top of the pack - below the woven elastic chord. This version of the pack shipped to us as a Christmas gift.







This pack is turning out to be a great size for me...

Another detail that is not mentioned on their web site is the color of the interior. Besides the great quality of construction - Jandd colors the inside in an almost neon yellow. Make it much easier to see what's inside...



Definitely recommended....!

Next up is a bag made by Axiom. It's the Magellan - which is part of their Journey series. This bag is about three years old. Not sure if this exact version is still available...





Great features include side pockets, a rear pocket, and a front mesh pocket. Plenty of places to store things without the need to open up the main bag. Very convenient!

And last up... The Lone Peak RP-700:



Larger yes. And a separate zipper allows this bag to expand if you need it to as you fill it up. It has a pocket on each side. A nice feature - but not roomy at all compared to the Axiom. They still work though. And like the Jannd - is has a pocket on the top. It has been used as my long distance cruising bag. Tons of room. Though now I'm thinking about checking out the Jannd Rack Pack II.



Picture of the Lone Peak compared to the Jandd - side by side. The Lone Peak is definitely taller even before it's opened up for expansion...



They are all great trunk bags. I guess that it comes down to functionality and how it will fit on your bike. I'm rather tall - so most bags work easily on my bikes. My wife is much shorter - and some bags are too tall to work properly. (There is not a lot of room between where the rack rails are compared to the back of her seat...)

All of the bags do great in the rain without a separate rain cover.

Hope this info helps!