The rounded cup body is comfortable to hold and will not be fatigued after a long time of use. Built-in food contact grade silicone ring, sealing, and anti-leakage. Double-layer vacuum temperature locking technology, long-lasting heat preservation, inside and outside the imported 304 stainless steel material, sandwich vacuum state, better heat preservation performance. Measuring 10.8*2.7 inches, this custom bamboo lid & bottom vacuum insulated bottle 17oz. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. We offer logo printing and full packaging customization. Product Highlights: BPA-free, leak-proof, travel-friendly.