Premium 18/8 stainless steel inner & outer walls for superior durability and rust resistance

Advanced vacuum insulation technology maintains temperature for 24hrs hot /12hrs cold

Seamless one-piece spinning craftsmanship eliminates welding weak points

Food-grade 304 stainless steel mouthpiece with precision grinding for smooth drinking

Leak-proof rotary switch design with silicone gasket for 360° travel safety

Ergonomic curved body with non-slip textured grip for comfortable handling

Dual-layer copper-plated vacuum chamber for maximum thermal efficiency

Multi-scenario use: business trips, outdoor adventures, gym sessions, and office hydration

Mirror-polished finish resists fingerprints and maintains sleek appearance

Large-capacity 500ml design with optimized weight distribution for portability