40OZ/1182ML Large Capacity Stainless Steel Thermos Whether you are exploring the outdoors or working in the office, this bottle will provide a clean, fresh taste! * This sleek and sturdy wide-mouth bottle is made of high-grade stainless steel and won't rust or rupture * The materials used in the thermos are environmentally friendly materials that are harmless to the body Insulation technology: Double-layer vacuum insulation keeps the beverage cold for 24 hours or hot water for 12 hours. * The wide mouth opening provides easy fluid flow and is ideal for drinking on the go. The wide opening is also suitable for large ice cubes. * This leak-proof bottle also provides extra durability and the bottom material provides extra grip Perfect for school, work, travel and fitness.