Key Features
Superior Insulation: Utilizes double-wall vacuum insulation to maintain temperature for extended periods. It is advertised to keep drinks hot for up to 24 hours and cold for up to 48 hours. [1, 2, 3]
Premium Materials: The inner wall is typically constructed from high-grade SUS 316 or 304 stainless steel, which is food-safe, rust-resistant, and corrosion-resistant. [1, 2, 3]
Leak-Proof Design: Features a secure, screw-on lid and a leak-resistant seal, making it safe to carry in bags. [1, 2]
Integrated Serving Cup: The cap is designed to double as a drinking water cup for convenience during travel or outdoor activities.
Portability: Includes a lanyard (sling) or strap for easy carrying and often has an anti-slip base.
BPA-Free: Made with food-grade materials to ensure safety and prevent plastic odors.