Made with 18/8 stainless steel, this Wide Mouth Bottle features MiiR’s patented leakproof lid and Thermo 3D® double wall vacuum-insulation, which keeps hot drinks hot and cold drinks cold for hours on end. Finished with MiiR’s safe and durable Hardshell™ Powder Coat finish, persevering product appearance, and laser-etched Reigning Champ crest logo.