This premium metal bottle is crafted from high-quality, food-grade 18/304 stainless steel, ensuring health safety as it is BPA-free. The bottle features an eco-friendly coating to resist scratches and fingerprints, and its ergonomic design makes it comfortable to hold and easy to carry. It includes a specially designed lid with food-grade silicone pads and rings to ensure a leak-proof seal. Utilizing double-wall vacuum insulation technology, the bottle offers excellent temperature retention, keeping cold beverages chilled for up to 24 hours and hot drinks warm for 12 hours. This makes it perfect for enjoying cold refreshments in summer and warm beverages in winter.