Premium Custom 500ml Insulated Stainless Steel Thermos Flask

High-Quality 304 Stainless Steel
– Food-grade inner & outer layers ensure durability, rust resistance, and safe storage for hot/cold beverages.
Advanced Vacuum Insulation
– Double-walled construction maintains temperature for 12-24 hours (hot) or 24+ hours (cold), ideal for travel, work, or outdoor adventures.
Leak-Proof & Sweat-Free Design
– Precision-engineered screw lid with silicone gasket prevents spills; condensation-free exterior keeps hands dry.
Wide-Mouth Convenience
– Easy filling for ice cubes, tea leaves, or coffee grounds; compatible with most cleaning brushes.
Customizable Branding
– Smooth surface perfect for laser engraving or printing logos, ideal for corporate gifts, promotions, or personal use.
Multi-Scenario Use
– Gym hydration, office coffee, camping trips, or daily commutes—lightweight yet rugged for any lifestyle.
Bulk Wholesale Advantage
– Global sourcing ensures factory-direct pricing with no minimum order limits, backed by fast shipping.