The Stanley FlowState Tumbler Cup 40oz is engineered for superior temperature retention, keeping beverages hot or cold for hours. Its durable stainless steel construction ensures long-lasting performance, while the spill-resistant lid offers convenience on the go. Designed with a comfortable grip and ample capacity, this tumbler is ideal for outdoor adventures, workdays, or daily hydration needs. Experience reliable insulation and practical design in one expertly crafted cup.