100oz Camelbak MULE
Don't know what M.U.L.E stands for, but this pack is a hoss. I have the previous generation one and I love it. It's big enough for day hiking, bicycle commuting, mountain biking, tailgating, protesting, etc.
It is BRIGHT YELLOW, however.
I couldn't find a free shipping code, but Nashbar gives them out like candy. Surely you can find one if you're clever.