Thanks for your kind words; I appreciate it. As for your questions:

* The back of the smaller compartment, and the bottom of the backpack, are protected by the exoMesh.

* The main compartment has lockable (interlocking) zipper tabs and can be easily secured with a small lock; the smaller compartment’s zipper pulls can also be secured with a small lock. Also, you could lock the entire bag to a bed frame or something similar with a cable lock.

There’s one thing about the bag that bugs me, and I’ll cover it in a “long term test” type post, but here’s a preview: if you throw the bag over one shoulder (assuming you’re a righty), the strap you’ll be using is the lockable strap. I’ve found that the steel cable-reinforced strap tends to twist inside the shoulder pad when you walk and move about, and this can become uncomfortable. I think I know how it can be fixed, but need to visit a shoe repair shop to test my fix. If you use both shoulder straps, this isn’t an issue. If the load you’re carrying is light, it doesn’t matter much. But if you’re carrying 5-6 lbs. of stuff (think a netbook and other gadgets, papers, etc.), it’s a PITA. Look for this post in the future.

Thanks again!

Kevin

Two quick questions about the bag
* How much of the backback is covered with the exoMesh material? I know some of the PacSafe backpacks only guard the bottom of the bag, which doesn’t help if the bag’s up on a bus rack.
* How easy is it to secure contents in the MS350 (with luggage locks, etc)? Sometimes I need to leave the bag at a hotel during the day. I’m debating getting either this backback or the TravelSafe 12L (also from PacSafe)

Thanks for all the time you put into your site.