The Snowaro 1L Stainless Steel Vacuum Flask series are with vacuum insulation and double wall 18/8 grade stainless steel. The powder coated black colour 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. Hand washable and leakproof. Content 1000 ml.