Premium 450ML Stainless Steel Vacuum Flask with Advanced Thermal Technology

High-performance double-wall vacuum insulation maintains optimal temperature for 12+ hours (hot) and 24+ hours (cold) using food-grade 304 stainless steel. Leak-proof swing lid features one-touch opening with precision-engineered silicone gasket for spill-resistant pouring. Ergonomic curved body combines brushed finish with sweat-proof design for secure grip.

Commercial-grade construction withstands daily office use, outdoor adventures, and catering services. Mirror-polished inner wall resists odor retention while copper-plated vacuum layer enhances heat retention. Compatible with boiling liquids (100°C) without deformation due to reinforced base plate.

BPA-free materials meet FDA standards, suitable for coffee, tea, soups, and cold beverages. Space-saving cylindrical shape fits most car cup holders and backpack pockets. Minimalist aesthetic available in multiple metallic finishes for corporate gifting or personal use.

Note: Includes 30-day thermal performance guarantee and bulk order discounts for hospitality/retail buyers.