Key Features of Our Premium Stainless Steel Vacuum Flask • Double-Walled Vacuum Insulation: Engineered with advanced thermal lock technology, this insulated stainless steel flask keeps beverages hot or cold for up to 24 hours, perfect for all-day hydration. • Flask Doubles as a Cup: Designed for versatility, the top lid converts into a portable drinking cup, making it ideal for travel, camping, or office use. Comes with a 1-year warranty for added assurance. • Spill-Proof Narrow Mouth Design: The ergonomic narrow mouth ensures a smooth sipping experience while preventing spills — perfect for on-the-go hydration without the mess. • Travel-Friendly with Bag & Belt: Comes with a stylish carry bag and belt strap, making this portable flask easy to take anywhere — whether you’re hiking, commuting, or heading to the gym. • High-Quality 304 Grade Stainless Steel: Built using premium food-grade 304 stainless steel, this leak-proof, rust-resistant, and ultra-durable bottle is safe, long-lasting, and eco-friendly.