A vacuum flask or glass water bottle, often used for both hot and cold beverages. Key features include: Capacity: 400 ml Material: Typically made of glass with a silicone sleeve or plastic outer layer. Insulation: Designed to keep liquids hot or cold for extended periods. Design: Available in various colors. Features: May include a leak-proof lid and a carry loop for portability. Usage: Suitable for home, office, gym, and travel. Brand: Marketed under the name "Nice".