Premium 304 stainless steel inner wall ensures odor-free hydration with superior temperature retention for 24H hot or 12H cold.

Advanced vacuum insulation technology features double-walled copper plating for maximum thermal efficiency in extreme climates.

Ergonomic one-touch flip lid with leak-proof silicone ring enables effortless单手operation during commutes, gym sessions, or outdoor adventures.

Laser-engraved scale markings provide precise volume tracking (350ML/480ML options) for fitness enthusiasts and office hydration goals.

Military-grade outer coating resists condensation sweat and accidental drops, making it ideal for construction sites or hiking trips.

FDA-approved food-grade materials guarantee safe drinking without metallic aftertaste, suitable for children’s school use.

Sleek brushed finish with diamond-cut base prevents surface scratches when placed in car cup holders or briefcases.

Commercial-grade threading withstands 10,000+ open/close cycles, perfect for high-frequency users like delivery drivers or nurses.