Someone commented on the lack of 'lockable' zips on the Synapse. I thought I'd share some ways I've seen to 'lock' zippers on a bag - or rather make the zippers a little harder & more fiddly to open. These aren't failsafe of course, as someone could slash the bag or breach the zippers to get in (watch a scary scary zipper breach video <a href="http://www.telltag.com/zipstop-technology.asp">here</a>!!
(Sorry for the multiple posts - I haven't worked out how to put text between the photos!)
Option 1: Carabineers through the zipper pulls
This is quick and easy. The smaller the carabineer, the better. Iíve used two carabineers:
On the left, thread the carabinner through the zipper pulls for the Left vertical side pocket, water bottle pocket & small front pocket
On the right, thread the carabinner through the zipper pulls for the Right vertical pocket, two zipper pulls for the main pocket
The zips can still be opened slightly, though the other zipper pulls get in the way to make access harder.