This stainless steel double wall vacuum mug holds a mighty 22oz and stays hot or cold “forever” according to its fan base. Speaking of bases, this powerhouse has a wide base with a rubber grip that helps it stay put whether placed on a drafting table or a boat deck. Award winning, drink from anywhere, no-look top plus a final leak-proof top. Easy no-look open and close top. Double wall full vacuum. 100% leak-proof with final top. Comes in 3 colors. Patented function and design. 6.5" tall with top on. Specs: holds 22oz, stainless steel, BPA-free polypropylene. Care: top rack dishwasher safe or hand wash. - keeps hot for 12 hours. - keeps cold for 24 hours.