X-Kettles utilize the same award-winning innovative, space-saving, collapsible and functional features as the other products in the X-Pot series. The hard-anodized aluminum base conducts heat well, making it perfect for slow simmering or fast boiling - the clear Tritan lid allows you to see when water boils. 1.3 or 2.0 Liter sizes are ideal for morning coffee (remember to bring your X-Brew), hot water for freeze-dried pouches or simple-yet-gourmet meals for two.