I've been eyeing one of these bags ever since I've got Mondrian. The smaller area and more rigid surface should make me a little more aerodynamic. This should be great for when I am zipping around town and don't need to carry a change of clothes or anything else substantial.
The smaller volume makes it easier to find your contents, and is actually ideal for a carry-on bag on a flight. It'll hold my in-flight entertainment (small Kindle Fire, iPhone, in-ear headphones, etc.)
|Ortlieb mini-o bag with my in-flight essentials|
|This bag gives me tons of room for my feet.|