Capacity & Weight: Lightweight at approximately 200g with a 0.5L capacity, designed to be similar in weight to a smartphone. Superior Insulation: Achieves excellent heat retention (73℃ or higher for 6 hours) and cold retention (7℃ or lower for 6 hours). Advanced Insulation Technology: Features reduced heat transfer through a smaller contact area between the inner and outer bottles, as well as a copper coating on the inner wall of the vacuum section to prevent heat escape. Odor & Dirt Resistant Interior: The interior is electropolished, making it resistant to odors and dirt, suitable for aromatic beverages like coffee or flavored tea. Materials: Constructed from stainless steel (body), with polypropylene (lid, stopper), and silicone rubber (lid, stopper). Dimensions: Approximately W70mm × D70mm × H225mm (mouth diameter approx. 45mm). Care: Not suitable for microwave or dishwasher use. The Rivers Vacuum Flask Stem STD is a highly portable and efficient stainless steel bottle, meticulously designed for both daily hydration and outdoor activities. Weighing in at only about 200g, it offers a 0.5L capacity while maintaining an ultra-light profile, comparable to a smartphone. Its advanced insulation technology, including a minimized contact area between bottle layers and a copper-coated vacuum interior, ensures superior temperature retention for both hot and cold beverages for up to 6 hours. The electropolished interior prevents the absorption of odors and dirt, making it an ideal choice for enjoying everything from water to aromatic coffees and teas.
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