These 20oz Cooler flasks are great to help you save over $200 each time you use them on drinks. Take them to the pool, sports game, festival, beach, cruise, amusement park or anywhere you can bring in coolers and ice packs. They are made of food-safe plastic and is more opaque and holds 50% more alcohol than all other icebox flasks. Just fill up and screw on the lid. For best results put it in the freezer to get it ice cold before you put it in your cooler to keep things cold longer. New and improved lid guarantees no leaks. Check out Smuggle Mug's other hidden flask products.