* Superior Insulation: Stay refreshed throughout the day with our advanced 500ml insulated water bottle. It keeps your beverages hot for up to 24 hours and icy cold for up to 36 hours, making it perfect for any season. * Premium Quality, Safe Hydration: Crafted from Food-Grade 304 Stainless Steel, our thermal water bottle guarantees 100% BPA-free, odor-free, and toxin-free hydration. Enjoy your drinks without the worry of a metallic taste or rust concerns. * Leak-Proof Lid: The ingeniously designed lid ensures your bottle stays leak-free, preventing any unwanted spills. * On the go? No problem! It's an ideal companion for camping, hiking, walking, running, or biking. ***You may choose to mix different colors to make up a case of 12 bottles. Just let us know via message what colors and quantities you would like!***