Stansport Hydration Bladder is perfect for keeping your drinks fresh at the campsite. It has a wide mouth opening which can easily accommodates drink mixes and ice cubes, and it includes a patented bite valve for easy drinking. Made of durable polyurethane, it will survive for years of use and is microwave and BPA safe.
 
Large opening allows easy access for cleaning and drying
Patented bite valve for easy flow of water
Contents can be frozen or microwaved directly in the bag
13.5" L x 7" W x 1" H