Premium 500ml stainless steel inner wall with vacuum insulation technology for 12-hour temperature retention

Double-wall construction prevents condensation and ensures comfortable grip during outdoor activities

Laser-engraved customization area for personalized logos or designs (permanent marking)

Food-grade 18/8 stainless steel material, BPA-free and rust-resistant for health safety

Precision CNC machining creates seamless leak-proof structure with threaded copper ring seal

Wide-mouth design accommodates ice cubes and easy cleaning (brush included)

Anti-slip silicone base protects surfaces while maintaining stability during gym sessions

Military-grade powder coating resists scratches and maintains color vibrancy

Optimized weight distribution (380g) balances durability with portable travel convenience

Multi-scenario use: office hydration, hiking adventures, fitness training, and car commuting