Premium 304 stainless steel construction ensures rust resistance and long-term durability

Precision-engineered small mouth-sealed gasket prevents leaks during intense outdoor activities

Universal fit design compatible with most standard glass containers for versatile use

Mirror-polished surface with seamless welding for premium aesthetic appeal

Military-grade sealing technology maintains optimal liquid temperature for 12+ hours

Ergonomic thumb-push opening mechanism enables one-handed operation during workouts

CNC-machined threads provide smooth engagement and vibration-proof performance

Multi-scenario application: camping, gym sessions, hiking, and office hydration

100% BPA-free food contact materials certified by international safety standards

Industrial-strength hinge design withstands repeated opening/closing cycles