This vacuum insulated mug will keep liquids cold or hot longer on the go than non-insulated mugs. The convenient clear lid has rubber drip-free seal. The ergonomic handle is sturdy and allows for a comfortable hold. * Double wall, vacuum insulated 18/8 stainless steel water bottle with copper lining. * Copper-lining keeps drinks cold for up to 24 hours and keeps drinks hot for up to 12 hours. * Comes with a convenient clear lid with a spill-proof seal. * Durable powder coated exterior that can be printed or laser engraved. * Holds up to 20 fl oz. (580ml) of hot or cold liquid. * Eco friendly bottle is reusable and free of single use plastic packing materials. * Free of BPA and phthalates.