Urbane Home Insulated Stainless Steel Bottle 1 litre with Sipper Lid-Double Wall |Leak Proof|Rust Proof|Keeps Drinks Hot/Cold for 6-12 Hours|Flip Up Handle| Easy to Carry (Black) (Pack of 40) Premium Stainless Steel Construction: Crafted from high-quality stainless steel, ensuring durability, longevity, and resistance to corrosion. Double-Wall Insulation: Features double-wall insulation to keep beverages hot for up to 12 hours or cold for up to 24 hours, ideal for all-day hydration needs. Generous Capacity: With a 1-liter capacity, provides ample hydration for long journeys, outdoor adventures, or daily use without the need for constant refills. Leak-Proof Design: Designed with a leak-proof lid and tight seal to prevent spills and leaks, making it suitable for backpacks, gym bags, or car cup holders. Wide Mouth Opening: Boasts a wide mouth opening for easy filling, pouring, and cleaning, allowing for hassle-free use and maintenance.