Advanced Insulation and Durability: Keeps beverages hot for over 9 hours, cold for more than 12 hours, and ice cubes cool for up to 34 hours; double-wall stainless steel construction ensures durability and sweat-free performance Dynamic Handle for On-the-Go: Features a foldable handle with ergonomic design for easy transport; adapts to needs whether on foot or in a vehicle Flip Straw Sipper Lid: Equipped with a foldable sipper nozzle for spill-proof and leak-proof sipping; allows for one-handed use Wide Mouth Convenience: Wide-mouth design facilitates easy filling, pouring, and cleaning; accommodates ice cubes and chunky soups Versatile Capacity: 64 oz size is perfect for staying hydrated during long hikes, road trips, workouts, or outdoor events; ideal for sports enthusiasts, campers, and busy professionals needing a substantial drink supply throughout the day