Camelbak has your back when it comes to hydration. They're famous for producing products that provide hydration on the run (and on the back), but the key to the whole venture is their Big Bite Valve. This is a a rubber thing that you gently bite, which releases water into your mouth. Now Camelbak has mounted this innovation onto a nearly indestructible Lexan water bottle and called it the CamelBak .75 Liter Water Bottle. The result is an easy-to-use, spill-proof bottle to add to your hydration aresenal. This is a 25 oz. bottle, so you'll need two for a three-setter under the summer heat.