The Hydro Flask 20-ounce Wide Mouth bottle with Flex Sip Lid is small enough to conveniently fit in cup holders, backpack pockets, purses, and hands but big enough to quench your thirst. Whether you use this bottle for your morning coffee or daily water intake, rest assured that your liquids stay ice cold for 24 hours or hot for 12. The leak-proof lid means you can transport your drink without worrying, while the flex strap makes the bottle comfortable to carry. Smaller size is convenient and easy to carry Dishwasher safe design makes cleaning easy Flex lid is leak proof, easy to carry, and comfortable to drink out of Winter 2021/22 item Equipped With TempShield TempShield is Hydro Flask's innovative double-wall, vacuum insulation, which protects the temperature of its contents and eliminates condensation. TempShield keeps liquids cold up to 24 hours, and hot up to 12 hours.