説明This tumbler features a vacuum-insulated stainless steel construction for superior thermal performance, keeping drinks cold for up to 24 hours and hot for up to 6 hours. It is made from durable, rust-proof 18/8 pro-grade stainless steel that won't retain or transfer flavors, and includes a bpa-free lid for safe use. The exterior is finished with a proprietary powder coating for a secure, slip-free grip.
