Those rear bags are a dead ringer/ripoff of the
Rev Pack Tour Pack made in California by abused women. (A worthy cause to contribute to, and they're about 1/2 the price too). I have one of the RevPack Large Tour Packs and just love it. it goes on/off in seconds and holds a lot of stuff. And never a drip inside even in torrential downpours, like any "sunny" Georgia afternoon ride.
Rev Pack Tour Pack