Atlasware Bullet Vacuum Flask is a premium-quality stainless steel bottle, engineered with a double-wall, vacuum-insulated design. It keeps beverages hot for up to 18 hours and cold for up to 24 hours, making it ideal for travel, office, school, and outdoor activities. Made from high-grade stainless steel, it is BPA-free, leak-proof, sweat-proof, and unbreakable. The sleek "bullet" shape gives it a compact, stylish, and easy-to-carry look. Built for durability and maximum thermal performance, the Atlasware Bullet is trusted by customers worldwide for its reliability and smart design.