This 30 oz stainless steel tumbler features triple-wall insulation to keep beverages hot for up to 8 hours or cold for up to 24 hours. Made from durable, copper-lined 18/8 stainless steel, it resists retaining tastes and odors. The floral design is chip- and peel-resistant and dishwasher safe, while a quiet, nonslip base and cup-holder-friendly shape make it ideal for everyday use.