Premium 18oz Leakproof Stainless Steel Vacuum Flask

Military-Grade Durability
Double-wall 304 stainless steel construction with advanced vacuum insulation maintains temperature for 12+ hours (hot/cold). Shock-resistant base and reinforced threading ensure long-term outdoor use.
Zero-Leak Precision Design
Patented one-touch lid with silicone gasket seals tightly against spills. Tested under extreme angles and pressures for 100% leakproof performance during travel or sports.
Ultra-Customizable Branding
Laser-engraved or full-color printing accepts custom logos/designs without fading. Matte/gloss finish options for corporate gifts, retail branding, or promotional events.
Ergonomic Everyday Versatility
Slim 18oz (532ml) capacity fits car cup holders and backpack pockets. Wide mouth accommodates ice cubes or easy cleaning. Ideal for offices, gyms, hiking, and commutes.
Bulk Wholesale Advantage
Factory-direct pricing with MOQ flexibility. Custom packaging and color batches available. Ships globally with volume discounts.