【1L of Refreshment, Perfectly Chilled】Keeps drinks cold for hours, ideal for club activities, exercise, school, events, sports hydration, hiking, and outdoor adventures! Comes with an easy-to-carry strap for hydration anytime, anywhere. 【6-Hour Cold Retention with Vacuum Insulation!】The vacuum insulation layer between the inner and outer walls keeps drinks cold. It prevents the cold from escaping and the external heat from entering. This ensures a 6-hour cold retention! Enjoy cold drinks for up to 6 hours. 【One-Touch Open & Direct Drinking】Simply press the button while lowering the lock. Easy to open, perfect for athletes! "Ice can be added directly!" The 5cm-diameter opening allows you to add large ice cubes directly, preventing them from melting quickly and diluting your drink. Convenient for carrying ice to club activities. Impact-resistant sides! The sides are impact-resistant, providing peace of mind against accidental drops. The zipper guard covers the closed zipper, preventing the bottle from falling out. 【Few Parts, Hassle-Free】Only 3 parts! Easy to clean, making it a convenient design for busy mothers. 【Spare Gaskets Included for Replacement!】Comes with spare lid and stopper gaskets, allowing for immediate replacement when they get dirty or damaged, ensuring cleanliness at all times. 【Product Details】Size (including cover): Width 12.4 x Depth 9.3 x Height 27.5cm (approx.) Weight: Approx. 510g Capacity: Approx. 1.0L Cold Retention: Below 9 degrees Celsius (6 hours) Available in 2 Colors: Red / Blue