I use a set of Axiom Journey series that look almost identical to the Nashbar ATB's. This it going on the 4th summer and they are still in fine condition. I use Axiom waterproof panniers in the winter/spring here in the PNW and they are fine also but a good bit heavier than the Journey bags.
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(Life is too short to play crappy guitars) 2006 Raleigh Cadent 3.0, 1977 Schwinn Volare, 2010 Windsor tourist. ( I didn't fall , I attacked the floor)