Key Features
Double-Wall Vacuum Insulation: Constructed with two layers of stainless steel separated by a vacuum. This design minimizes heat transfer, keeping drinks hot (typically for 4–7 hours) or cold (up to 6–12+ hours). [1, 2, 3, 4, 5]
Durable Material: Made from food-grade 18/8 (304) stainless steel, which is rust-proof, BPA-free, and does not transfer tastes.
Ergonomic Design: Features a sturdy, curved handle for a secure grip. The tapered, narrow base is designed to fit most standard car cup holders.
Twist-Open Cap: Often equipped with a leak-resistant, twist-open lid for secure travel.
Matte Finish: Typically features a non-slip matte coating (in this case, grey) that is resistant to fingerprints and provides a better grip.
Capacity: Commonly available in sizes ranging from 400ml to 500ml (approx. 14–17 oz).