800ml Thermos Water Flasks BEIGE

The product is a pink thermal flask, also known as a vacuum flask or insulated water bottle, made from 316 stainless steel. The "SUS 316" marking on the label indicates the use of this material, which is a medical-grade steel known for its high resistance to oxidation and corrosion. This type of steel is designed to not leave a metallic taste or rust, making it suitable for a variety of beverages, including tea, coffee, milk, and juice. 

The flask features double-wall vacuum insulation technology, which allows it to maintain the temperature of its contents for an extended period, typically keeping liquids hot for 6 to 12 hours and cold for 12 to 24 hours. It is also described as being leak-proof and having a durable construction. The flask has a carrying strap for portability and may also have a lid that can be used as a drinking cup. Some similar models may feature a smart LED touch screen to display the temperature of the liquid inside. 

The product is often marketed with terms like "Fashion Genuine Materials" and is designed for various uses, including travel, hiking, camping, office, and daily hydration needs.