The Dometic 500ml Thermo Tumbler has double-wall insulation to keep your drinks at the perfect temperature! The tumbler is made from robust stainless steel for active lifestyles, and it features a 360 degree leak-proof drink cap to avoid those missy spills. The lid also comes with a convenient press button for easy opening and closing. This tumbler is BPS-free and dishwasher safe for easy cleaning.