This popular thermos bottle is beautiful in simplicity and in its design. It is made by using sustainably bamboo, food-grade silicone, and highest quality stainless steel. This thermos water bottle is double insulated and is easy to fill and easy to clean. perfect to fill with coffee, tea, water w. ice cubes, smoothies or other favourites. it keeps cold for up to 12 hours or hot up to 8 hours. steel is very durable, re-use again and again for years to come. It comes in a designed present box.