Vacuum InsulationCOKTIK insulated stainless steel water bottle has carefully chosen doublewalled vacuum insulation technology Drink will be kept warm for 12 hours and kept cold for 24 hours Doubled walled function resists condensation on its outer layer MaterialOur wide mouth water bottles are made out of highquality 188 stainless steel and are no BPA or any other toxinsAnd the powder coat exterior finish is a classic Stainless steel interior is smooth and can be cleaned with a simple rinse Includes 2 LidsThe drinking bottle is equipped with two individual lidsstraw lid spout lid Carabiner Straw Lid with 2 Straws All lids are no BPA leakproof and dustproof catering to your needs Leak proofWe have determined that the bottle is absolutely leakproof and shatterproofThe 64 oz water bottle is perfect for outdoor activities camping sports and much more With such a large capacity water jug its easy to stay hydrated and refreshed while exercising outdoors List of Items Included in ProductCOKTIK Insulated Water Bottle 2 lidsstraw lid and spout lid 2 straws 1 cup brush Professional customer service