Food contact 304 stainless steel liner, temperature-resistant material, healthy and odorless, antioxidant, corrosion-resistant, easy to clean without leaving dirt, family use more assured. Multi-layer temperature locking process, 304 stainless steel liner, long-lasting insulation, retain the temperature you want. All-round sealing leakage prevention, 360 ? inverted without leakage, does not add to the life of the trouble, travel more at ease. Large caliber cup mouth, smooth and unhindered drinking, more convenient to drink, easy to clean. Wear-resistant cup bottom, desktop, and the bottom of the cup firmly affixed, placed so as not to fall, safe, and not inverted. Measuring 2.8*9.45 inches, this custom portable vacuum straw insulated bottle 30oz. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Customization available: Print your logo or customize packaging and color schemes. Product Highlights: BPA-free, leak-proof, travel-friendly.