Crafted with a durable stainless steel outer and inner layer, this tumbler boasts a double wall construction that effectively insulates hot or cold liquids. The screw-on lid is spill-resistant and features a convenient carabiner clip for easy attachment. With a silicone band for a comfortable grip, this tumbler meets FDA requirements and is BPA-free. We recommend hand washing to maintain its quality.Complies with Prop 65.Price above 50 is via Ocean freight.