High-Quality & Eco-Friendly – The insulated water bottle is made of high-quality 304 stainless steel, sturdy and durable. Double-wall stainless steel provides excellent thermal insulation. Stainless steel does not support mold growth or retain flavors from previous contents, ensuring pure and sanitary hydration. Designed for long-term reuse, it helps reduce reliance on single-use plastic.Vacuum Insulated – Keeps beverages cold for up to 12 hours or hot for up to 10 hours. Vacuum insulation creates an airless space between two walls, minimizing heat transfer through convection. The outer surface remains condensation-free and comfortable to hold.Leak-Proof & Non-Slip – Features a BPA-free lid with a silicone sealing ring for reliable leak resistance—even if tipped or dropped. A non-slip silicone base prevents sliding on smooth surfaces.Multi-Purpose – 500 ml capacity, suitable for water, tea, coffee, milk, and other beverages. Includes a dual-function lid that doubles as a drinking cup. Ergonomic handle design makes it easy to carry for hiking, biking, camping, commuting, school, or office use. Fits standard car cup holders, bike mounts, and backpack pockets.Ideal Gift – A thoughtful, practical gift for men and women. Perfect for birthdays, holidays, weddings, anniversaries, and other celebrations. Finished with a durable matte powder coating for a sleek, timeless appearance.