This reusable drink pouch is a full 17 oz to keep you hydrated and ready for the party. It is food safe, waterproof and leakproof which makes it perfect for any occasion including bachelorette/bachelor party’s, camping or even just around the house ! These pouches can be used for snacks as well as drinks and even has a convenient straw hole. The pouch is leakproof only if you do not puncture the straw hole. You can drink out of the top as well as the convenient straw hole on the side.