From ice water to hot coffee, drinks will stay your preferred temperature for longer, and the vacuum insulation also prevents condensation from making a mess. This tumbler has a slide lid to protect you from splashes and a silicone wrap to help with grip, and has a capacity of 28 ounces. The stainless steel material is durable, will not rust or oxidize, and is completely BPA free. Hand washing is recommended, do not microwave.