CamelBak's Venture keeps you hydrated while on the go, with the perfect hands-free way to carry fuel and water for your long runs and hikes. It holds two 21-ounce bottles out of the way on your lower back. And, you get plenty of cargo room for food, a jacket, whatever. The pack itself only weighs 7 ounces, so it doesn't weigh you down or slow you up.
Camelbak Venture with Podium Chill BPA-Free Bottle (Black/Lemon Chrome) 21 oz$58.99