Features: They are designed with double-wall vacuum insulation, typically made from stainless steel, to maintain the temperature of beverages (hot or cold) for extended periods.
Capacity & Uses: These flasks come in various sizes (e.g., 1.5 liters, 5.0 liters) and are suitable for storing water, coffee, tea, soup, or other beverages for daily use, camping, travel, or office use.