The Milton Slim Thermosteel Bottle 350ml is a compact and stylish vacuum-insulated flask designed to keep beverages hot or cold for extended periods. Crafted from high-quality 304-grade stainless steel, it features a double-walled construction with an inner copper coating for enhanced temperature retention. Its slim profile makes it easy to carry in handbags, backpacks, or car cup holders, making it ideal for daily commutes, office use, or travel. The leak-proof design ensures mess-free portability, and the bottle is available in various colors to suit personal preferences.