CamelBak Rain Cover
This rain cover fits securely to your CamelBak pack with a Velcro closure and drawstring and will protect it from everything short of a jump in the pond. The bright yellow gives daytime visibility and reflectivity for low light situations.
Excellent product! I keep this rain cover tucked in my bag at all times - when I'm riding my bike or just walking around. It keeps my stuff dry - so far, I have yet to have anything get wet. If it's really pouring and you're riding without a fender on a bike, the rooster tail can spray up underneath but as long as you tighten the drawstring all the way around the bag, you're set. It was super cheap and very effective - recommended to anyone and everyone!