Strong, dependable and always by your side. The Gladiator Tumbler is the newest addition to our Lifetime Warranty series. This sturdy vacuum insulated, double wall 18/8 stainless steel tumbler will keep your drink hot for up to 8 hours and cool up to 24 hours! A transparent spill proof adjustable lid completes this modern on the go tumbler. The stunning matte finish gives the Gladiator Tumbler a superior feel; with a large 20 oz/600 ml capacity it is the ultimate tumbler. Grab one for the office, school and car.