quality stainless steel with doublewall design provides reliable insulation to help keep beverages at a desired temperature and reduces external condensation. Exquisite workmanship: inner wall is polished and wiredrawn, delivering durable resistance to wear and corrosion while remaining easy to clean. Convenient design: large opening simplifies filling, pouring, and cleaning; smooth, ergonomic handle offers a comfortable grip during use. Strong and tough: integral molding delivers strength; a steady bottom together with a concave antiskid surface enhances stability on flat surfaces. Function and performance: designed for everyday beverage use with durable construction, reliable temperature retention, and practical usability. Use scenarios: At home or in the office for coffee, tea, or water, keeping drinks at a steady temperature with minimal condensation on the exterior. Outdoor activities such as camping, hiking, or picnics where easy filling and stable placement are advantageous. Traveling or commuting, where the large opening facilitates quick filling and cleaning, and the sturdy handle supports easy transport.