The 500ml Cup Steel Water Bottle is a durable, lightweight, and eco-friendly hydration solution made from high-quality stainless steel (usually 18/8 or 304 grade). It features double-wall vacuum insulation to keep drinks hot or cold for hours, a leak-proof lid, and a compact, portable design. Ideal for daily use, travel, or outdoor activities, it’s rust-resistant, BPA-free, and easy to clean. Some models include a carrying loop, powder-coated finish, or measurement markings. Perfect for staying hydrated sustainably!