20oz/30 oz Stainless-Steel Tumbler/Cup. This double-walled, vacuum insulated stainless steel tumbler comes with a clear push on lid and straw. Lid has slider when not using straw to prevent spills. This tumbler is BPA free, leak proof, and comes individually boxed. It fits in most vehicle cup holders. Will keep your cold drinks cold and your hot drinks hot for many hours as you move through your day and night.