Unmatched Insulation: Thanks to the unmatched double wall vacuum insulated technology, this 12 ounce water bottle effectively keeps your liquid cold up to 24 hours and hot up to 12 hours. Truly Leak-proof: A truly leak-proof bottle with cap screws on tight and no sweat on the exterior. You can store it anywhere you want without worrying about it spilling, no damp mess. Handy and Easy to Use: Thanks to the wide opening, you can easily add in ice cubes and clean the inner wall of the bottle. Designed with a carrying loop for convenient transport. Perfect size to hold and fit most cup holders in car or bike. Durable and Eco-friendly: Made from food grade stainless steel, no chemicals nor metallic tastes, giving you the purest, most refreshing beverages wherever you go. Designed to last, this bottle is a remarkably affordable alternative to plastic bottles.