A premium-quality insulated tumbler made from 18/8 (304) stainless steel, engineered to deliver excellent temperature retention through its vacuum double-wall insulation. Designed for durability, style, and everyday practicality, making it ideal for camping, travel, office use, or home. The tumbler keeps beverages hot for up to 3 hours and cold for up to 9 hours under room-temperature tests, ensuring your drink stays at the perfect temperature whether you're enjoying coffee, tea, juice, or iced beverages. It comes with a BPA-free transparent lid equipped with a silicone gasket for a secure, leak-resistant seal. The drinking opening accommodates both direct sipping and straw use. The exterior features a sweat-proof finish for a comfortable, slip-free grip. Key Features: • Capacity: 12oz / 350ml - Height: 11 cm, Bottom Width: 9.2 cm Vacuum double-wall insulation for long-lasting temperature control Made from premium 18/8 (304) stainless steel that never rusts BPA-free lid with silicone seal and drinking hole for sip or straw Sweat-proof exterior with smooth, high-quality finish Perfect for car cup holders, office, outdoor adventures, and everyday use