Premium 500ml Custom Stainless Steel Vacuum Flask

High-Grade 18/8 Stainless Steel
– Food-safe inner wall resists rust, odors, and bacterial buildup for lasting hygiene.
Advanced Double-Wall Vacuum Insulation
– Maintains hot/cold temperatures for 12/24 hours with precision-engineered copper plating.
Laser-Engraved Logo Customization
– High-resolution branding on the matte exterior for corporate gifts/promotions.
Leak-Proof Twist Lid
– Reinforced silicone gasket ensures 360° spill protection for gym/travel/office use.
Ergonomic Curved Design
– Slim middle grip for easy handling, fits standard car cup holders.
Multi-Surface Powder Coating
– Scratch-resistant matte finish in 10+ color options. Bulk wholesale MOQ starts at 500pcs with OEM packaging support.