Premium 304 stainless steel construction ensures superior durability and rust resistance for long-lasting use. Double-wall vacuum insulation maintains beverage temperature for hours, keeping drinks hot or cold as desired. Ergonomic handle design provides a secure grip and comfortable carrying experience. Sleek polished finish adds a modern touch suitable for home, office, or outdoor use. High-capacity 500ml/350ml options cater to different hydration needs throughout the day. Lead-free materials guarantee safe drinking without harmful chemical leaching. Precision laser welding creates seamless joints for enhanced structural integrity. Dishwasher-safe design allows for effortless cleaning and maintenance. Ideal for coffee enthusiasts, commuters, and professionals seeking stylish functionality. Bulk purchase available at unbeatable wholesale prices for resellers and businesses.