Premium Double-Walled Stainless Steel Vacuum Flask

Unrivaled 18/8 food-grade stainless steel construction ensures superior durability and toxin-free hydration. Advanced vacuum insulation technology maintains beverages hot for 12 hours or cold for 24 hours with laboratory-tested precision. Mirror-polished inner wall resists flavor retention for pure taste.

Seamless one-piece spinning craftsmanship eliminates leaks, while the ergonomic threaded lid enables单手operation. BPA-free silicone gasket withstands -20°C to 100°C extremes. Matte sandblasted finish provides anti-slip grip and fingerprint resistance.

Ideal for executive travel, construction sites, or alpine hiking. Commercial-grade performance meets FDA standards, making it perfect for restaurant takeout services or hospital staff. The streamlined 500ml capacity fits standard vehicle cup holders.

Wholesale exclusive: Bulk pricing available for corporate gifts or outdoor gear retailers. OEM customization accepts minimum 500-unit orders with 30% cost advantage over retail brands.