The fan-favorite Yeti Rambler 20 oz. Tumbler, your beverage's best defense. Crafted from durable kitchen-grade stainless steel, it boasts double-wall vacuum insulation to keep your drink at the perfect temperature, from the first sip to the last. The included MagSlider Lid provides an extra layer of splash-resistant protection, though it’s not completely spill-proof. Dishwasher safe for hassle-free cleaning, this tumbler fits most cupholders, making it perfect for on-the-go adventures.Puncture and rust-resistant, the Rambler 20 oz. Tumbler is built to withstand anything while keeping your cold drinks cold and hot drinks hot.