They are Novara from REI. I got the bigger ones on a closeout a few years ago and I don't think they make that model anymore. The smaller ones are the Transfer model which looks a little different now but is still available. They are big enough and have a nice solid clip setup. I've been happy with them and both sets have internal rain covers and the material is good and sturdy.

I have had some shimmy issues on that bike and that is why I went with the big ones and more weight on the front which resolved it. Part of the issue may have been the stiffness of the backing on the big ones. I think they had a little whip to them when in the rear.