The Swiss Peak Elite series are with vacuum insulation and double wall 18/8 grade stainless steel. The powder coated black color is built to last! No fading or cracking here! The inner wall is plated with copper for ultimate conductivity to keep drinks hot for 8 hours and cold for 24 hours. This food container keeps your food hot or cold all day long! A 18/8 SS spoon is included. Hand wash only. Leakproof. Content 500 ml.