380ml capacity thermal flask, made of double-walled recycled stainless steel, with a matching screw-on cap and silver base. BPA free. Steel is one of the most sought-after materials and can be found almost everywhere, from everyday products to large buildings. With countless properties, including durability and a high degree of reusability, making it a highly valued alternative in sustainability solutions. Properly treated, it allows for the obtaining of new resources for infinite use.Stainless steel