^^I use one of their pouches on the front of my bike as well as a larger sized, frame mounted pouch on the back. The front one is nearly waterproof and the back has water proof compartments. I typically carry the camera on the front and strap the tripod to the back. REI sells the bike pouches and offers a life-time replacement warranty as well.
Using these pouches, Iíve carted my cameras about 5 thousand miles overall, over about 75% gravel roads. Both the cameras and the pouches have held up extremely well. Can't say enough good things about the durability of their products.