I've put a few hundred miles on this bag now, so I'm updating my review - still 5 stars, but I can speak to this bag better now that I've used it a bit. Very nice medium-sized tank bag - for my purposes (mainly day trips), not too big, not too small. Comes with a rain cover which has a clear window in it so you can still see the map in the bag's clear map pocket if you're using paper maps. (The cover takes up most of the front pocket - you could leave rain the cover behind or put it somewhere else if you wanted to use the pocket for something else.) There's a security strap to tether the bag to the bike in case something bad happened, but the magnets are good and strong. (Strong enough to pick up restaurant tableware and accidentally carry it out with you...) I like the way the magnets are polarized the right way so that the flaps tend to snap shut to the bottom of the bag for carrying when you pull it off the bike. My 2009 Concours 14 has a big plastic plate with a tiny glove box on the forward half of the tank, but the magnets are located in such a way that I think all but the front center two are holding, and that's plenty as far as I'm concerned. Nice pockets on the inside, nice lined pocket at the rear for phone or sunglasses, with a hole for earbud wires or maybe even a hydration bag tube. All in all, a really well-designed medium-sized tank bag. This is the 12-liter bag - Cortech makes this bag in 10-liter and 18-liter sizes also. If I ever need more space for longer trips, I may look into getting one of the 18-liter bags too. (Update, I've put several thousand miles on the bag since writing this, plus using it as a manpurse daily, and it's holding up fine - it's really well-made, IMO.)
