This mini vacuum bottle is made of durable food grade stainless steel material. Features 304 Stainless Steel exterior and 316 Stainless Steel lining. Small size, easier to carry! Double wall vacuum seal keeps beverages at optimal temperature. Lid creates a tight seal to prevent leaks or spills. Stay hydrated while exercising! The bottle body can be printed with your logo, pattern or other content. More information, please send your detailed request for quotation.